Chacka

Chacka (ちゃか) was the younger son of the legendary oni leader and founder of the Arahabaki Family, Shuten-dōji. After being sealed for thousands of years, he was released by his followers in the Three Great Families, and was the main antagonist for the first part of the Three Great Families Saga.

Appearance
Chacka was an handsome young man with long, messy gray hair that turns to red, black eyes and two horns growing from his forehead. In his initial appearance he was seen wearing an old red kimono, with tears and burns all over it.

In his later appearances, he was seen in an black kimono with red flowers throughout it, though not completely wearing it, leaving his muscular and scarred chest exposed.

After absorbing the spiritual avatar of the Demon God Mara, Chacka's appearance changes drastically. His hair grows in length and turns the gray parts into white, and his horns grow longer. Parts of his skin also changes to dark-red mass growing from the ends of his limbs and branching onto his body.

Power Absorption
Chacka's unnamed A- ranked Technique, simply referred to as Power Absorption (力吸収), gives him the ability to absorb power, energy (stamina, ki, magic) and spiritual beings, similar to Tengu Geppa,

Trivia

 * Chacka is named after Chackmon (also known as Kumamon) from Digimon Frontier.
 * Chacka's appearance after absorbing Mara is based on Muzan Kibitsuji from Kimetsu no Yaiba.