Tachibana Mayumi is the red-haired girl, classmate of Tsuyoshi. She, BTW, IS the party girl. Mayumi told Tsuyoshi about the job in Katorea Flower Shop, where he will meet Mahoko again. An interesting girl who seems to like to tease Tsuyoshi. It is unfortunate that they didn't make an episode on her, though.

Yamashita Minatsu works with, both, Tsuyoshi and Tooru in the Dogeza Cafe, and Minoru has a crush on her. In the game, she has an intersesting after-hours activity.

Mitsuki Shizuka is the homeroom professor of Tsuyoshi. It does not seem to be Tooru's homeroom professor in the OVA, though. (I can be wrong). Although she appears on several episodes of the TV Serie, not much emphasis was given on her. Shizuka-sensei lives in the same apartment complex as Ryoko and Tsuyoshi.

Goto Minoru is Tooru/Tsuyoshi's best friend. He has a crush for Minatsu, and sometimes is willing to trick Tsuyoshi (not that much to Tooru) to be with her. His love letter prank in episode 1 lead eventually to Ai and Tsuyoshi meeting in the park.

Dogeza master (OK, I won't go into spelling here, that's what is written on the apron!) is the boss/owner of the Dogeza Cafe. No given name is mentioned, as far as I can recall. He has a crush on Miyuki, and often give her some extra service! (For instance, a huge bowl of ice cream in episode 3).

Don't let looks deceive you, this is Satake Haruhiko, the bastard rich playboy wannabe. And that is being not so rough on him. He thinks he is the ultimate guy which all the girls will fall for, and if it doesn't work, he will try to use other means. I tend to agree from what I have read: he is more nastier in the TV Serie than the OVA.