Arataki Itto

Itto is a tall, large-built man. He has long, spiky white hair with pinkish tips, and red eyes with elongated pupils. Red lines, most likely makeup, are painted on his face, arms, and torso. Itto has two sharp red horns on his head and small fangs, indicating his oni heritage. In Japanese mythology, oni are a type of yokai, large, fanged, and horned demons known for their ferocious nature. Traditionally, they often wield kanabo – large, spiked clubs similar to maces. The club Itto uses in his elemental burst is inspired by this weapon.

Despite Itto's outward appearance as "evil and domineering," he's a kind person at heart, aside from his tendency to pick fights with Kujo Sara at every opportunity. He's not particularly smart, but he can put in the effort when called upon. He's respected by his gang and generally well-liked by the residents of Inazuma, especially the children, but he has a strained relationship with the Tenryo Commission, despite his generally harmless antics and pranks.
Itto is proud of his oni heritage and dislikes those who discriminate against his kind. He appreciates the sacrifices made by his blue oni brethren for their ability to integrate into human society today, and even wishes to share his achievements with them as a token of gratitude for their efforts. He always remembers the ancient treaty between the oni tribes and never uses his power for evil, refusing to terrorize humans or steal rewards he hasn't earned. His pride makes him extremely competitive, though he knows when to back down.
Itto also has a habit of making up names for himself on the fly and maintaining his appearance, no matter how harsh the weather. Despite being only a Parti-oni, Itto is severely allergic to beans: contact with them can cause severe shock, and eating them can leave him bedridden for a long time.