The (Former) Master of Teasing, Takagi-san? ~This Time for Sure, with the Boy in the Next Seat~

Back in middle school, Nishikata was always teased by Takagi-san, the girl in the seat next to him. But for them, it was a special, secret language. The day before Takagi moved away, Nishikata gathered all his courage to confess his feelings, but the words just wouldn't come out. Ten years have passed. Now a high school teacher, Nishikata's quiet life is turned upside down when his new student teacher turns out to be Takagi-san, now more beautiful and mature than ever. But something is differen