The narrative follows Keita Suminoe, a student who is preparing for his high school entrance exams. His primary motivation is to enroll in the same school as his older twin step-sisters, Ako and Riko. Despite not being related by blood, the sisters harbor romantic feelings for Keita and frequently compete for his affection, leading to various comedic and awkward situations.
A 12-episode TV adaptation aired in 2010 on the AT-X network. While it shares the same premise as the OVA, the two series follow slightly different timelines and events. The Plot: A Complicated Family Dynamic
The anime adaptation, produced by Studio Feel, was released in two primary formats:
This series consists of 12 episodes released between 2008 and 2015. These episodes were typically bundled with special editions of the manga volumes.