Richou

Richou is a Werecat Monk-Berserker from D.D.D. His Overskill is Artemis Fever.

Fallen Guardian arc
He appears in the Watermaple Consulate Raid Party's training grounds, where he has a  training match with Akatsuki, where she starts to use her small size as an advantage in combat.

Trivia

 * Richou is one of the D.D.D members that comes from D.D.D Diaries.
 * In the light novel, he is with the Krusty army to finish the Return of the Goblin King event; however, in the anime he appears at the Watermaple Consulate Raid Party's training grounds.