Series by すずり街

Hana is a second-grade student with no friends. His only companion is a flowerpot that sits on his desk. A classmate is assigned to keep a daily journal about him. That assignment turns into close observation of his mysterious and strangely cute behavior. The early setup follows school days seen through watching a boy who is hard to ignore.

Kaede is a closeted male fan of boys' love who hides his hobby from his family. He secretly attends an event and visits the boys' love booths. There he unexpectedly runs into his own father. The discovery turns private fandom into a household comedy. The early chapters build jokes from shared secrets, family reactions, and the awkwardness of liking the same niche.