While there's no doubt that Hitsuji loves his boyfriend Hatoyama and young son Hinata, taking the leap into cohabitation is something he's done his best to avoid. So much so that even when he's forced to leave his apartment so it can be painted, he decides to stay at an internet cafe rather than impose on Hatoyama! When Hatoyama hears about this, he can't help but feel hurt that Hitsuji is refusing to rely on him. But rather than let the situation continue, Hatoyama instead makes a proposal -- Hitsuji will move in with him and Hinata until the work on his apartment is done! Will this new living arrangement finally take their relationship to the next level? Find out in the heartwarming final volume of Delinquent Daddy and Tender Teacher!