Janai Hou no Yoru (2021)

Janai Hou no Yoru 2021 / じゃない方の夜 2021 / じゃない方の夜 ~ 恋は突然、生まれない , Janai Hou no Yoru ~ Koi wa Totsuzen, Umarenai

Katagiri Shuichi is a university lecturer who has divorced thrice due to his affairs. Despite him having a wife at home, he constantly seeks for new love and always look forward to meeting new women at a wine bar. To fall in love with the women, Shuichi likes to develop love theories with a handsome bartender. (Source: DramaWiki)