Shin Yasuda

Shin Yasuda is an English teacher at Katagiri High School whose good looks and professional teaching ability are widely recognized, yet he is openly labeled a 'problem teacher' due to his publicly declared fondness for high school girls—particularly those of a flat-chested build. He tends to be cold and indifferent toward male students while showing excessive enthusiasm and making flirtatious remarks toward female students. Despite being regarded as eccentric by those around him, his easygoing nature grants him a peculiar but undeniable presence on campus.