1+2=Paradise

Cast
Original creator: Junko Kamimura

Manga
The manga was published by Kodansha in 1989 to 1990 then re-released by Shobunkan in 1994 to 1995.

Characters

 * Rika Nakamura
 * Yuka Nakamura
 * Yuusuke's Father
 * Yuusuke Yamamoto