Bukiyou-Tachi No Kosodate Nisshi summary:

New neighbours moved in next door to Matsuda, who is a school nurse. It was his student, Raito, and his guardian, Shouhei. Seeing that the two of them missed dinner, he cooks for them out of sympathy. “Could you please cook for us again?”Unable to refuse, Matsuda ended up agreeing to their earnest request. One day, Shohei falls asleep after dinner. But when Matsuda approaches him to wake him up, Shouhei pulls him by the arm into an embrace?!