The Devil Is a Part-Timer!, Vol. 11 (manga)The Devil Is a Part-Timer! Series
Satoshi Wagahara, Akio Hiiragi
This manga follows Maou and his comrades as they try to figure out who's responsible for hurting their friend Chiho. They suspect it might be an Angel and set out to find them. With the ultimate Maou/Alciel combo, they plan to paint the town red once they confront the culprit.