A pervert that holds a grudge against Nanase Kudo.
He´s a student that likes to sneak under the bushes and take pictures to his girl classmates. He believes that what he does deserves to be called "art" and goes to the point of placing hidden cameras inside the women´s bathroom and changing room. He´s finally confronted by Nanase Kudou with the aid of the entire tennis club, and they beat him up and send an accusation to the principals office. He gets expelled for three days, during that time the tennis club members start to fall under mysterious accidents and finally when he gets back to school he shows up in front of Nanase and threatens her, he blasts a tree with magic beam and asks her to pray forgiveness on her knees, but she shoots him with a taser gun that Yukari had lend her, because they had figured out that he may had magic powers, and Ayano told them that a new magic user easily turns his guard down. Kousuke was sent to prison under the control of Kirika´s Special Investigation Unit. Time ran of and similar cases were seen all over the city, the truth under all this mystery is an evil RPG web game, called Pandemonium and created by Bernhardt Rhodes, as a way to get his revenge against Kazuma, who had killed his evil master, a powerful demon. Thanks to the help of Bernhardt, who disguised himself under the false name "Decalius", Kousuke was able to escape from his cell and gained a even greater amount of power. He used this power to kidnap Nanase, and later on Yukari, and made them his slaves, dressing them up the way his pervert mind always wanted. He had reached his revenge but the power he had, that was nothing but an evil spirit possessing his body, consumed his mind and challenged Bernhardt seeking the ultimate power. Bernhardt was no match for him and he ended up being trapped between hard cristal insidde the Pandemonium itself. When Kazuma, Ayano and Ren attacked the Pandemonium Lapis used her huge sword to cut Kousukes body in two. From the beginning Bernhardt planed to use him as the final sacrifice to release the demon king Beliel.