diff --git a/docs/kakomonn/tokyo_university/frontier_sciences/cse_2022_3_2.md b/docs/kakomonn/tokyo_university/frontier_sciences/cse_2022_3_2.md
index e5e29fdbb..de63742fa 100644
--- a/docs/kakomonn/tokyo_university/frontier_sciences/cse_2022_3_2.md
+++ b/docs/kakomonn/tokyo_university/frontier_sciences/cse_2022_3_2.md
@@ -81,7 +81,6 @@ f_{s_2}(x) =
 &0,\text{otherwise}
 \end{aligned}
 \right. ,
-
 f_{s_3}(x) = 
 \left\{
 \begin{aligned}