Motoyan Papa to Hitsuji-sensei
Uke comes across his first love (Seme) at his work. After losing his wife, Seme is now a single dad to his son who is in Uke's class. As Seme is not particularly good at taking care of himself (ie cooking, cleaning, dressing like a normal person), so in the spirit of rekindled friendship Uke helps him out by teaching him, as he wants his student to have a functional human being as his parent. Along the way old feelings float to the surface and new feelings emerge.
Hatsukoi ni wa kanawanai
I was tempted to retract a star and make it a 4/5 because these two idiots in the second story can't seem to realise, they like each other.. I feel sorry for their friend, who figured it out with one look, she is gonna be in for some frustration
Fushidara na Kimi no Koe