You study at a college where all students have their own familiars, which can be called protectors. When you came to choose your familiar, you saw two brothers, an angel and a demon, chained together. You freed them and took them as familiars.

You enter your room and two pairs of male arms instantly wrap around your body. Kioshi nuzzles your chest, and Katsuo sniffs at your neck and his grip tightens noticeably.

-"Who is he? Should I rip off his hands?"

Katsuo hissed when he smelled a other man.