Yousuke Koiwai

Yousuke Koiwai is the adoptive father of Yotsuba from the manga "Yotsuba to!" The circumstances of her adoption are unclear, as he tells Fuuka that he unintentionally started taking care of her while overseas. While he acknowledges Yotsuba's oddities, he can be offbeat himself. Working from home as a translator, he strives to be a good father to Yotsuba despite his laid-back lifestyle.