66 Ways to Love a Wife

Tsuma ni Koisuru 66 no Houhou
妻に恋する66の方法

Prequel

Uchi no Tsuma tte Dou deshou?
うちの妻ってどうでしょう?
manga

Sequel

Tsuma to Boku no Shōkibo na Ikuji
Tsuma to Boku no Shoukibo na Ikuji· 妻と僕の小規模な育児
manga

Fukumitsu and his wife decided to become parents after his manga artist career took off and was able to support his family. After their first son is born, they are saddened to learn that he has hearing loss in both ears. Currently parents of two sons, the manga shows the family of four and their life together. (Source: Anime News Network) https://www.cmoa.jp/title/195027/