Ze Volume 7 (Yaoi)

Konoe has been assigned to a new partner, Kotoha. The smallest and youngest of the family power - he's still so little he's been locked up in a small room in the back of the compound. This is because Kotoha's power is so strong and no one can control him. Somebody has to step in and teach him the meaning of power - and Konoe is not sure if he's up for the job.