The secret ability research laboratory [Hecate]. Normally, researchers and guards would be moving busily through the shining, state-of-the-art facility, but now, everything has been demolished by a single ability user.

Beep— Re-announcing. Alpha-1 Team and Theta-3 Team, please proceed immediately to the location of Experimental Data A-0330, ple— bzzzt— krrrk—

A man walks into the room where A-0330, mentioned in the announcement, is located. It is Paul Verlaine, the one responsible for destroying this lab. And the identity of what the announcement repeatedly mentioned and the researchers desperately cried out for is revealed: the humanoid artificial ability-user lifeform, Guest.