A graduated college student with a phobia of crowds got an unexpected job by chance, and inadvertently became an important supporting role in an entangled relationship. This is a process in which he re-recognizes himself, discovers himself, and constantly refreshes his world view. It is also a process in which an outsider slowly discovers the truth and regains his true self and returns to the inside. The world is huge, and there are many unknowns hidden in places that humans cannot see, and humans coexist with these alien species.