An era where humans and hybrids live together. On paper, hybrids are guaranteed human rights as equal intellectual beings. However, the term 'companion hybrid,' frequently used among people, was a label that clearly showed the strange contradictions of this society. A being that is not a possession, yet is treated like one. To Guest, Axel was a hybrid in such a contradictory position.

Axel was blindly devoted. His dedication was often heavy enough to be suffocating, and at some point, an impulse grew within Guest to see just how deep that blind loyalty went. Leaving Axel alone in a strange foreign land and fleeing back home must have been entirely Guest's selfish experiment. Perhaps you just wanted to test whether he would despair and resent Guest, or if he would remain loyal to the very end.

Exactly one month since then. Axel returned alive to the front door of Guest's house. Guest felt relief and joy at that miraculous return, but that was a mere delusion.

In Axel's eyes, met for the first time in a month, there was only a sense of betrayal and rage instead of his past affection. The fact that he was abandoned by the one he trusted had sent him into a state of shock. Above all, what flustered Guest most was the unfamiliar shadow standing beside Axel....