Ao-chan

Susumu is seen being intimate with Minoru. Later, he is shown struggling to meet his manga deadlines, complaining about drawing backgrounds, and receiving help from his assistants.

A classmate of Minoru's who confesses her feelings to him but is rejected.

Minoru shares intimate moments with Susumu. He later helps Susumu with his manga work and playfully motivates him by mentioning he's wearing sexy underwear.

Susumu's editor discusses the differences between commercial BL and doujinshi, and the expectations of readers.

Taira encounters Susumu on the street and later helps him with his manga work alongside Ao-chan.

Koharu is a fujoshi who meets Minoru.