Cast: Konjiki Runa

From Attractive Fascinante:

Oomura Yuu's first kiss was stolen by the beautiful Student Council president, Takamura Mitsuya. He later became his executive secretary and his duty was to do whatever the Takamura wanted. Both loved cats and were slowly drawn towards each other. As much as Yuu wanted to acknowledge his own feelings, he realised that he might not really knew about Takamura at all. In the end, Yuu decided to follow his heart and reach out to Takamura.

From Attractive Fascinante:

Chiharu and Mahiru, the cute twins, are childhood friends with Akira. Chiharu has decided to protect his “princess” Akira since then. However, Akira became a gorgeous prince when they started high school and somehow, he seems closer to Mahiru instead. After finding out his own feelings, will Chiharu pursue his own happiness or will he give his blessings to Akira and Mahiru?

Note: Very small hinted incest, is never really confirmed, but is in there. Just a warning for people who don't wish to read such subjects.