Ep. 1: Nao discovers she is adopted and seeks intimacy with her non-blood brother Shūsuke
Aired on January 9, 2011

1
Nao Takanashi attempts to seduce her brother Shūsuke, often framing him as the pervert after her provocations. While searching his room for porn magazines, she finds a photo album missing her childhood pictures. Confronting her adoptive parents, Shūji and Nanaka, she learns that a car accident ten years prior killed her biological parents and caused her memory loss. Shūsuke arranged for Shūji and Nanaka to adopt her, vowing to protect her as his sister. Shocked to learn they are not blood-related, Nao decides an intimate relationship with Shūsuke is now acceptable. She asks her parents to keep her discovery secret so they can maintain their sibling status.
Episodes
- Ep. 1 · Nao discovers she is adopted and seeks intimacy with her non-blood brother Shūsuke
- Ep. 2 · Nao sees a twin-tailed girl while Iroha claims to be Shūsuke's childhood friend.
- Ep. 3 · Iroha forces Shūsuke on a date while Nao and friends follow, leading to a kiss attempt and a panty reveal.
- Ep. 4 · Nao forces Shūsuke to the beach where he encounters Haruka, Hirono, and Iroha, leading to a rivalry that causes him physical harm.
- Ep. 5 · Shūsuke's Identity Revealed as Mister X Demands BL Magazine Return