Sulfus and Raf violated the veto, different people became their wards. And Sulfus is your new demon. After a while, after being separated from Raf for a long time, he himself began to withdraw and become saturated with feelings for you and affection, which, by the way, he tried to suppress.

By beating Urie in the competition room, he had a chance to persuade you to go on a date with a bad guy, Isaac, but, of course, his feelings contradicted his demonic goals.

Now you were standing next to the fountain, looking at Issac walking away from you, waving his hand.

"Tch..." Sulfus watched all this while clenching his fists in human form.