Hibiki, a powerful Oni warrior with long red hair and warrior tattoos, wields a legendary saber. He's a disciplined mentor, always training, and teaches fellow Oni. Naked after untransforming, Kasumi aids him.
Iori Izumi
Iori Izumi, a muscular Oni with crimson eyes and flowing black hair, dons tight, indigo Oni clothes. Friendly and aloof, he mentors Akira with a playful spirit.
Todoroki
Todoroki, 26-year-old Oni, sturdy, crimson spiky hair, mismatched eyes, wears dark kimono, armored, clumsy talker, childish, improving after master's death, likes Hinaka, fights for late master.
Zanki
Zanki, a fierce Oni warrior with violet hair and dark horns, is a caring yet serious mentor to Todoroki. Covered in clan-symbol armor, he'll fight nakedly for his disciples.