Tsuzuki wa Jugyou no Ato de

Rinko is aiming to be a good high-school teacher, but behind her perfect facade she hides a trauma that made her give up on love – her ex-boyfriend called her boring and frigid. The last person she wants to know about this is Sougo, the resident health-teacher, who seems to be a man with a past. But then the man who gave her the trauma returns in her life…

(Source: Aerandria)