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 … ! (Source: Kodansha USA) *Note: Contains six extra chapters.*
The kind homeroom teacher, Yoshino-sensei, actually has a black heart! Sensei is quietly meddling in here and there of Suzuki's school life who accidentally finds out about his secret. Tsundere high school girl x wicked teacher, secret lovey dovey school life! (Source: Chibi Manga)

