Male. He has a strong sense of justice and a personality that doesn't sweat the small stuff. He is energetic and simple-minded. By possessing a Bakera, he transforms into the swordsman Kengo Redmaru. He has red hair that resembles a cat. He uses a sword when transformed.

Male. Myohan's friend since elementary school. By possessing Almang, he transforms into the Yokai Hero, Little Commander. He has sky-blue hair. He wears something like a spacesuit when transformed.

Female. She loves robots and mecha. She also enjoys inventing various things, including some that seem dangerous. She is close friends with Ji Myohan. By possessing the spirit Broken Clock, she transforms into the Yokai Hero, Clock Lady. She is a beautiful girl with blue hair.

Male. A delinquent at Y Academy. He seems to lead others with a mysterious power. He is part of Ji Myohan's group. By possessing the Black Lion, he transforms into the Yokai Hero, Shishi-Oh. He has red hair.

Male. A top-class handsome guy even within Y Academy, popular with the female students. He is part of Ji Myohan's group. He equips a different version of the YSP Watch called the "YSP Watch Zero." By possessing Kyubi, he transforms into the Yokai Hero, Nine Tail. He has long white hair.

Male. He has a cool and cautious personality and does not look favorably upon the YSP Club. He transforms into Deep Shadow Galaxy using an Alien Watch. He has black hair about bob-cut length.

Male. A very ordinary boy who accidentally joins the YSP Club. He is a character who suffers in various ways. He tends to play the straight man (tsukkomi) to Myohan's antics. He has black hair shaped like an onion.

Female. Thought to be ordinary, but she is a self-proclaimed "Invasion Magical Girl" from another planet. She attacks using various magic-like spells from her staff and is extremely strong. She has brown hair with pink tips. She is beautiful. She is a villain with a final boss(?) vibe.