Dame na Kurai ga Choudoii
ダメなくらいが丁度いい
An elementary school teacher named Odagiri Itaru visits the home of his student, Aoyagi Rikuto, to investigate why he frequently sleeps in class. He discovers that Rikuto assists his father, Aoyagi Kaiji, who is a manga artist. Odagiri regularly checks in to ensure Rikuto gets enough rest. Over time, Odagiri begins to develop feelings for Kaiji and wonders if he can become someone important to him.