diff --git a/README.md b/README.md
index e63ac69cfc..434e9d42f7 100644
--- a/README.md
+++ b/README.md
@@ -52,3 +52,9 @@
 추가한 도메인 
 - 보너스 숫자 ( BonusNumber )
 
+# Step4 - 로또 수동 구매 ( Lotto )
+추가적인 요구사항
+- 사용자가 수동으로 추첨번호를 입력할 수 있도록 해야한다.
+- 입력한 금액, 자동 생성 숫자, 수동 생성 번호를 입력하도록 해야한다.
+- 수동 생성 번호는 자동 생성 번호와 중복될 수 없다.
+- 구매한 금액에서 수동 생성한 티켓을 제외한 나머지가 생성되어야 한다. 
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/BuyAmount.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/BuyAmount.kt
index dfa5b555ae..042e17d4c1 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/BuyAmount.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/BuyAmount.kt
@@ -12,8 +12,9 @@ value class BuyAmount(
 
     constructor(amount: Long) : this(BigDecimal.valueOf(amount))
 
-    fun divideByLotteryPrice(ticketPrice: Long): Int {
-        return amount.divide(BigDecimal.valueOf(ticketPrice)).toInt()
+    fun divideByLotteryPriceAndManualLottoAmount(ticketPrice: Long, manualTicketAmount: Int): Int {
+        val ticketAmount = amount.divide(BigDecimal.valueOf(ticketPrice)).toInt()
+        return ticketAmount - manualTicketAmount
     }
 
 }
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/ManualTicketAmount.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/ManualTicketAmount.kt
new file mode 100644
index 0000000000..b69c3575dc
--- /dev/null
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/amount/ManualTicketAmount.kt
@@ -0,0 +1,12 @@
+package camp.nextstep.edu.step.step2.domain.amount
+
+@JvmInline
+value class ManualTicketAmount(
+    val amount: Long
+) {
+
+    init {
+        require(amount > 0) { "구매 금액은 0보다 커야 합니다." }
+    }
+
+}
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lotto.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lotto.kt
index 85b5110f9e..272299a7cf 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lotto.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lotto.kt
@@ -10,6 +10,10 @@ class Lotto(
         return numbers.count { targetLotto.numbers.contains(it) }
     }
 
+    fun isDuplicateNumber(anotherNumber: Number): Boolean {
+        return numbers.contains(anotherNumber)
+    }
+
     fun countMatchBonus(bonusNumber: Number): Int {
         return numbers.count { it.number == bonusNumber.number }
     }
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lottos.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lottos.kt
index 5bd0e01d7a..c34ee8b999 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lottos.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/Lottos.kt
@@ -1,5 +1,6 @@
 package camp.nextstep.edu.step.step2.domain.lotto
 
+import camp.nextstep.edu.step.step2.domain.number.Number
 import camp.nextstep.edu.step.step2.domain.result.LottoMatch
 import java.util.stream.Collectors
 
@@ -11,16 +12,16 @@ class Lottos(
         require(lottos.isNotEmpty()) { "로또는 1개 이상이어야 합니다." }
     }
 
-    fun checkLottoNumbersByWinningLotto(winningLotto: WinningLotto): List<LottoMatch> {
-        val lottoMatchResults = mutableListOf<LottoMatch>()
+    fun isContainLottoNumbers(numbers: List<Number>): Boolean {
+        return lottos.contains(Lotto(numbers = numbers))
+    }
 
-        for (lotto in lottos) {
+    fun checkLottoNumbersByWinningLotto(winningLotto: WinningLotto): List<LottoMatch> {
+        return lottos.map { lotto ->
             val matchNumbers = lotto.countMatch(winningLotto.winningLotto)
             val matchBonus = lotto.countMatchBonus(winningLotto.bonusNumber)
-            lottoMatchResults.add(LottoMatch.of(matchNumbers, matchBonus))
+            LottoMatch.of(matchNumbers, matchBonus)
         }
-        return lottoMatchResults
-    }
 
     fun getLottoElements(): List<List<Int>> {
         return lottos.stream()
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/WinningLotto.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/WinningLotto.kt
index aa32108f40..e5eaf7a821 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/WinningLotto.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/lotto/WinningLotto.kt
@@ -9,8 +9,9 @@ data class WinningLotto(
 
     init {
         require(winningLotto.numbers.isNotEmpty()) { "당첨번호가 입력되지 않았습니다." }
+        
         // winningLotto 내 Number들과 bonusNumber가 중복되는지 검사
-        require(!winningLotto.numbers.contains(bonusNumber)) { "보너스 번호는 당첨 번호와 중복될 수 없습니다." }
+        require(!winningLotto.isDuplicateNumber(bonusNumber)) { "보너스 번호는 당첨 번호와 중복될 수 없습니다." }
     }
 
 }
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/result/LottoMatch.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/result/LottoMatch.kt
index 89cc18f701..08d7e37ea5 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/result/LottoMatch.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/result/LottoMatch.kt
@@ -8,14 +8,15 @@ enum class LottoMatch(
     SIX_MATCH(6, 0, 2_000_000_000),
     FIVE_MATCH(5, 0, 1_500_000),
     FIVE_MATCH_WITH_BONUS(5, 1, 30_000_000),
-    FOUR_MATCH(4, 0,50_000),
-    THREE_MATCH(3, 0,5_000),
-    NONE(0, 0,0);
+    FOUR_MATCH(4, 0, 50_000),
+    THREE_MATCH(3, 0, 5_000),
+    NONE(0, 0, 0);
 
 
     companion object {
         fun of(matchCount: Int, bonusMatch: Int): LottoMatch {
-            return values().find { it.matchCount == matchCount && it.bonusMatch == bonusMatch } ?: NONE
+            return values().find { it.matchCount == matchCount && it.bonusMatch == bonusMatch }
+                ?: NONE
         }
     }
     
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStore.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStore.kt
index 70d88b6392..ab7e67f7bc 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStore.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStore.kt
@@ -20,20 +20,31 @@ object LottoStore {
     /**
      * @description : 구매금액에 따른 로또 티켓 수량을 구한다.
      */
-    fun buyLottoTickets(buyAmount: BuyAmount): LottoTicketAmount {
-        val lottoTicketAmount = buyAmount.divideByLotteryPrice(ticketPrice = LOTTO_TICKET_PRICE)
+    fun buyAutoLottoTickets(buyAmount: BuyAmount, manualTicketAmount: Int): LottoTicketAmount {
+        val lottoTicketAmount = buyAmount.divideByLotteryPriceAndManualLottoAmount(
+            ticketPrice = LOTTO_TICKET_PRICE,
+            manualTicketAmount = manualTicketAmount
+        )
+
         return LottoTicketAmount(lottoTicketAmount)
     }
 
     /**
      * @description : 로또 티켓 수량에 따른 로또 번호를 생성한다.
      */
-    fun createNumbersByLottoTicketAmount(ticketAmount: LottoTicketAmount): Lottos {
+    fun createNumbersByLottoTicketAmount(
+        ticketAmount: LottoTicketAmount,
+        manualLottos: Lottos
+    ): Lottos {
         val lottoTickets = mutableListOf<Lotto>()
 
         for (i in 1..ticketAmount.lottoTicketAmount) {
-            val numbers = NumberGenerator.generate(NumberGenerator.LOTTO_RANDOM, START_NUMBER, END_NUMBER)
-            lottoTickets.add(Lotto(numbers = numbers))
+            val numbers =
+                NumberGenerator.generate(NumberGenerator.LOTTO_RANDOM, START_NUMBER, END_NUMBER)
+
+            if (!manualLottos.isContainLottoNumbers(numbers)) {
+                lottoTickets.add(Lotto(numbers = numbers))
+            }
         }
 
         return Lottos(lottos = lottoTickets)
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoProcessDto.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoProcessDto.kt
new file mode 100644
index 0000000000..2ff09b8c80
--- /dev/null
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoProcessDto.kt
@@ -0,0 +1,7 @@
+package camp.nextstep.edu.step.step2.dto
+
+data class LottoProcessDto(
+    val manualTicketAmount: Int,
+    val autoTicketAmount: Int,
+    val lottoTicketList: List<List<Int>>,
+)
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoResultDto.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoResultDto.kt
index f8f13e8ae4..59c5a798cf 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoResultDto.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/dto/LottoResultDto.kt
@@ -1,9 +1,9 @@
 package camp.nextstep.edu.step.step2.dto
 
-data class LottoResultDto (
+data class LottoResultDto(
     val matchResponse: List<MatchResponse>,
     val lottoProfitRate: Double
-    ) {
+) {
 
     data class MatchResponse(
         val matchCount: Int,
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/generator/NumberGenerator.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/generator/NumberGenerator.kt
index c89716b3f9..8e1e123c69 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/generator/NumberGenerator.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/generator/NumberGenerator.kt
@@ -5,12 +5,14 @@ import camp.nextstep.edu.step.step2.domain.number.Number
 enum class NumberGenerator(
     val generate: (Int, Int) -> List<Int>
 ) {
-    LOTTO_RANDOM({ startNum, endNum -> (startNum..endNum).shuffled().subList(0, 6).distinct().sorted() });
+    LOTTO_RANDOM({ startNum, endNum ->
+        (startNum..endNum).shuffled().subList(0, 6).distinct().sorted()
+    });
 
 
     companion object {
         fun generate(generator: NumberGenerator, startNumber: Int, endNumber: Int): List<Number> {
-             return generator.generate(startNumber, endNumber).map { Number(it) }
+            return generator.generate(startNumber, endNumber).map { Number(it) }
         }
     }
 
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/main.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/main.kt
index 216e548566..b4f1a53f80 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/main.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/main.kt
@@ -4,28 +4,40 @@ import camp.nextstep.edu.step.step2.domain.amount.BuyAmount
 import camp.nextstep.edu.step.step2.domain.lotto.Lottos
 import camp.nextstep.edu.step.step2.domain.lotto.WinningLotto
 import camp.nextstep.edu.step.step2.domain.store.LottoStore
+import camp.nextstep.edu.step.step2.dto.LottoProcessDto
 import camp.nextstep.edu.step.step2.view.InputView
 import camp.nextstep.edu.step.step2.view.OutputView
 
 
 fun main() {
     val buyAmount = InputView.getInputValueAndReturnBuyAmount()
+    val manualLottoCount = InputView.inputManualLottoCount()
+    val manualLottos = InputView.inputManalLottoNumbers(ticketAmount = manualLottoCount.amount)
 
-    val lottos = buyLottoTicketsWithAmount(buyAmount = buyAmount)
+    val lottos = buyLottoTicketsWithAmount(buyAmount = buyAmount, manualLottos = manualLottos)
 
     checkLottoTicketsWinningResult(lottos = lottos)
 }
 
-private fun buyLottoTicketsWithAmount(buyAmount: BuyAmount): Lottos {
-    val tickets = LottoStore.buyLottoTickets(buyAmount = buyAmount)
-
-    val lottos = LottoStore.createNumbersByLottoTicketAmount(ticketAmount = tickets)
+private fun buyLottoTicketsWithAmount(buyAmount: BuyAmount, manualLottos: Lottos): Lottos {
+    val tickets = LottoStore.buyAutoLottoTickets(
+        buyAmount = buyAmount,
+        manualTicketAmount = manualLottos.getLottoSize()
+    )
+    val lottos = LottoStore.createNumbersByLottoTicketAmount(
+        ticketAmount = tickets,
+        manualLottos = manualLottos
+    )
 
-    val ticketElements = lottos.getLottoElements()
+    val autoLottoNumbers = lottos.getLottoElements()
+    val manualLottoNumbers = manualLottos.getLottoElements()
 
     OutputView.displayTicketsNumbers(
-        ticketsAmount = tickets.lottoTicketAmount,
-        ticketNumbers = ticketElements
+        LottoProcessDto(
+            manualTicketAmount = manualLottos.getLottoSize(),
+            autoTicketAmount = tickets.lottoTicketAmount,
+            lottoTicketList = manualLottoNumbers + autoLottoNumbers
+        )
     )
 
     return lottos
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/view/InputView.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/view/InputView.kt
index c5d6b8a160..1ca11cd7e2 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/view/InputView.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/view/InputView.kt
@@ -1,7 +1,9 @@
 package camp.nextstep.edu.step.step2.view
 
 import camp.nextstep.edu.step.step2.domain.amount.BuyAmount
+import camp.nextstep.edu.step.step2.domain.amount.ManualTicketAmount
 import camp.nextstep.edu.step.step2.domain.lotto.Lotto
+import camp.nextstep.edu.step.step2.domain.lotto.Lottos
 import camp.nextstep.edu.step.step2.domain.number.Number
 
 object InputView {
@@ -11,6 +13,17 @@ object InputView {
         return BuyAmount(readLine()!!.toLong())
     }
 
+    fun inputManualLottoCount(): ManualTicketAmount {
+        println("수동으로 구매할 로또 수를 입력해 주세요.")
+        return ManualTicketAmount(amount = readLine()!!.toLong())
+    }
+
+    fun inputManalLottoNumbers(ticketAmount: Long): Lottos {
+        println("수동으로 구매할 번호를 입력해 주세요.")
+        val lottoList = (1..ticketAmount).map { Lotto.ofInputValues(numbers = readLine()!!) }
+        return Lottos(lottos = lottoList)
+    }
+
     fun inputLastWeekWinningNumbers(): Lotto {
         println("지난 주 당첨 번호를 입력해 주세요.")
         return Lotto.ofInputValues(numbers = readLine()!!)
diff --git a/src/main/kotlin/camp/nextstep/edu/step/step2/view/OutputView.kt b/src/main/kotlin/camp/nextstep/edu/step/step2/view/OutputView.kt
index 19027e16f5..ad8539ebed 100644
--- a/src/main/kotlin/camp/nextstep/edu/step/step2/view/OutputView.kt
+++ b/src/main/kotlin/camp/nextstep/edu/step/step2/view/OutputView.kt
@@ -1,15 +1,17 @@
 package camp.nextstep.edu.step.step2.view
 
+import camp.nextstep.edu.step.step2.dto.LottoProcessDto
 import camp.nextstep.edu.step.step2.dto.LottoResultDto
 
 object OutputView {
 
-    fun displayTicketsNumbers(ticketsAmount: Int, ticketNumbers: List<List<Int>>) {
-        println("${ticketsAmount}개를 구매했습니다.")
+    fun displayTicketsNumbers(lottoProcessDto: LottoProcessDto) {
+        println("수동으로 ${lottoProcessDto.manualTicketAmount}장, 자동으로 ${lottoProcessDto.autoTicketAmount}개를 구매했습니다.")
 
-        for (ticketNumber in ticketNumbers) {
-            println(ticketNumber)
+        for (lottoTicket in lottoProcessDto.lottoTicketList) {
+            println(lottoTicket)
         }
+
     }
 
     fun displayLottoResultByDto(lottoResultDto: LottoResultDto) {
diff --git a/src/test/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStoreTest.kt b/src/test/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStoreTest.kt
index e5efe70e52..032c687f2e 100644
--- a/src/test/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStoreTest.kt
+++ b/src/test/kotlin/camp/nextstep/edu/step/step2/domain/store/LottoStoreTest.kt
@@ -15,14 +15,15 @@ import java.math.BigDecimal
 @DisplayName("로또 상점은")
 class LottoStoreTest : BehaviorSpec({
 
-    Given("구입 금액이 주어지고") {
+    Given("구입 금액과 수동 로또 개수가 주어지고") {
         val buyAmount = BuyAmount(amount = BigDecimal.valueOf(10000L))
+        val manualTicketAmount = 2
 
         When("로또를 구매하면") {
-            val lottoTickets = LottoStore.buyLottoTickets(buyAmount)
+            val lottoTickets = LottoStore.buyAutoLottoTickets(buyAmount, manualTicketAmount)
 
             Then("구매한 금액만큼의 로또 티켓 수를 반환한다.") {
-                lottoTickets.lottoTicketAmount shouldBe 10
+                lottoTickets.lottoTicketAmount shouldBe 8
             }
         }
     }
@@ -82,12 +83,24 @@ class LottoStoreTest : BehaviorSpec({
         }
     }
 
-    Given("로또의 수량이주어지고") {
+    Given("로또의 수량과 수동 로또번호가 주어지고") {
         val lottoTicketAmount = LottoTicketAmount(lottoTicketAmount = 10)
+        val manualLotto = Lottos( lottos = listOf(
+            Lotto(
+                listOf(
+                    Number(number = 1),
+                    Number(number = 2),
+                    Number(number = 3),
+                    Number(number = 4),
+                    Number(number = 5),
+                    Number(number = 6)
+                )
+            )
+        ))
 
         When("로또 발급을 시도하면") {
             val lottoTickets =
-                LottoStore.createNumbersByLottoTicketAmount(ticketAmount = lottoTicketAmount)
+                LottoStore.createNumbersByLottoTicketAmount(ticketAmount = lottoTicketAmount, manualLottos = manualLotto)
 
             Then("구매한 수량만큼의 로또가 발급된다.") {
                 lottoTickets.lottos.size shouldBe 10
@@ -148,5 +161,4 @@ class LottoStoreTest : BehaviorSpec({
             }
         }
     }
-
 })