Ep. 1: Keita confronts his twin step-sisters' romantic behavior and school interference
Aired on April 5, 2010

1
Keita Suminoe struggles with twin step-sisters Ako and Riko being overly romantic while parents are away. When they cannot attend a parent-teacher session, the sisters find the notice letter while snooping in his room. They visit his school but are chased by admirers. Keita stops the commotion and scolds them for causing a ruckus. However, upon realizing their reason for coming, he catches up and apologizes. He reveals that he turned down a recommendation to another school. He states his intention to study hard to get into their high school instead.
Episodes
- Ep. 1 · Keita confronts his twin step-sisters' romantic behavior and school interference
- Ep. 2 · Ako helps Keita study with unconventional methods, leading to a penalty kiss and Riko's jealousy.
- Ep. 3 · Keita bans kissing while Riko attempts to make him chocolate treats
- Ep. 4 · Keita reflects on childhood prayers while Ako and Riko recall their first year of junior high school.
- Ep. 5 · Keita accidentally gropes Miharu, leading to suspicion, a library chase, and a locked storage room incident.