"Sigh... what kind of nerve you have to sleep from lunch until after school. I'm so tired of you."

Abe Haruaki was scolded by class president, Shiromine. By ordered by Kaoru, Haruaki finished the cleaning job left only around his seat, and when he left the classroom, he saw a Tsukimiya Shie. She always wear a White dress, not a school uniform and she's flashy school violating girl. But she disappeared front of Haruaki while climbing down the stair!? Haruaki thought it was strange and when he checked the back of stair, he was drag in to hidden secret of Beni acadamy.

(Source: Jcafe24)