Without a single boyfriend in sixteen years, Natsume has zero relationship experience … and it’s all thanks to her super overprotective neighbor—high school teacher, Mikami-sensei!! Whether at home or at school, Natsume is always being manipulated by his strangely overbearing affections. But while it may have seemed like sibling love at first, their relationship soon takes an unexpected turn … !
Mikami-sensei and his beloved Natsume can't tell anybody about their secret relationship as boyfriend and girlfriend! The two lovers wind up performing Romeo and Juliet at the school festival, but a certain handsome school chairman arrives to drive a wedge between them ... ! Will this be the ultimate battle of love between these childish adults ... ?!