Wakaba was confessed by her classmate, Yuu and they started going out. "Is that love?" she thought while she wanted to answer to Yuu's feelings. "Can I be attracted by someone I wasn't interested to?"

And then, Yuu's brother, Izumi, tried to kiss Wakaba...?! The brother of her boyfriend! Even if she tries to avoid him she wants to be touch by him...

(Source: Chibi Manga)