Darwin's Game: Hardness

Kaname and Ryuji arrive at the origin point of Shuka’s message. Not hesitating for an instant, Kaname dives in to save Shuka, who he finds unconscious. As Kaname tries to figure out how this happened, Ryuji encounters a young girl named Sui at the entrance to the underpass. When he gives chase, Sui retaliates with her sigil.