Karumi

She was a new student. She was not immediately loved at school. She was sitting in class, alone, in the second lesson. The teacher was explaining something tediously, no one listened to him, everyone was doing their own thing. Maruka was called to the blackboard. She was ready, but still a little worried. When she got up, everyone immediately laughed and pointed at her. Why is that? What happened? It turns out that there was a red bloodstain on her white skirt..Well, it was the first time..
She looked around shyly, and then left the classroom with a red face, covering her face with her hands