Shikoku

紫黒

Shikoku looks much like an ordinary, petite young girl, featuring long purple hair with snake-like tips, slit pupils, sharp canines, and a black mark near the tip of her tongue. She is typically dressed in a traditional Japanese kimono, with her hair tied back by a red ribbon.
Shikoku is quite talkative. In contrast to Rairen, who was openly hostile toward humans—mocking the entire species, even Tenka, who nearly killed him—she finds humans intriguing. She uses a smartphone and adopts various modern habits.
Despite her playful demeanor, Shikoku is tactical and cautious. She devises and executes different strategies to fight the Anti-Demon Corps, all while keeping her composure and advising Kuusetsu to exercise caution. However, she can be surprised if events do not unfold as planned, though she remains intrigued by the situation.
Little is known about Shikoku's past. At some point before the exhibition match between the 7th and 6th Units, she attacked and defeated several members of the Anti-Demon Corps' 3rd Unit.