Shouko Oomori

Shouko Oomori presents herself as a gentle and endearing school nurse, but beneath that soft exterior lies an unpredictable personality prone to emotional outbursts. Perpetually unlucky in love, she tends to spiral into obsessive, yandere-like behavior whenever a romantic relationship falls apart. Her most enigmatic habit involves leaving behind a small kitten wearing a collar engraved with her initials each time she departs from the club room — a peculiar farewell ritual that speaks volumes about her mysterious nature. She remains one of the most captivating and unconventional characters in the series.