Yushirou

Yushirou holds a singular place among all demons as the only one transformed by Tamayo herself rather than by Muzan. Bound to her by profound admiration and absolute loyalty, he dedicates himself entirely to the roles of protector and assistant. His Blood Demon Art, known as Mokuton, grants him the ability to manipulate others' visual perception, enabling him to provide concealment and reconnaissance support. Though his temperament is prickly and his tongue sharp toward outsiders, he proved to be an indispensable source of critical backup during the climactic battle against Muzan.