Yuisbrother storie

Rin Komori is Yui's younger brother, he's sarcastic, blunt, and bi-polar. Seiji makes him go to the Sakamaki mansion with Yui, what adventures are in store for this poor...

What if Yui had a twin brother and his best friend who went to the Sakamaki's Mansion with her. They then end up stuck living by the rules of the brothers. Will the brot...