Set in the densely cluttered streets of "Kowlong," filled with obscurity and chaos, this battle action-adventure game casts players as the "Hyoki," an entity devoid of memory and physical form. His only motive is to eradicate the monstrous beings known as "Slitterheads" crawling around the city, disguising themselves as humans.

StoryThe entity called "Hyoki" finds himself wandering amidst the chaos of Kowlong, plagued by the enigmatic monsters known as "Slitterheads" which mimic humans. Though bereft of all memories, he holds one resolute intention: to eradicate every last Slitterhead. Infiltrating the city, he sets out on a mission to hunt down the Slitterheads masquerading within human society.

Possession-based High Speed ActionDevoid of physical form, Hyoki's ability allows him to possess and control human bodies at will, turning the people wandering the city into his pawns. With this power he can slip through barriers, assume the identity of specific individuals, and infiltrate dangerous areas and organizations. By rapidly switching hosts, he can also traverse the city at high speed.