Hard Nerd Daddy: Hatarake! Otaku!!
ハード・ナード・ダディ -働け! オタク!!-
The "male maternity blues story" revolves around a manga creator who used to spend lavishly on his otaku hobbies, thanks to the carefree life of a dual-income marriage. That all changes when his wife gets pregnant. Suddenly, the man has to juggle manga or money… otaku hobbies or cost of living.
(Source: ANN)