Dramatical Murder - Season 1 Episode 9 Data_09_Echt

Aoba and an injured Noiz are ambushed by Morphine members when Clear appears and easily defeats them. When one of men tries to hurt Aoba, Clear violently beats the man up until Aoba stops him, allowing the Morphine member the chance to throw acid on Clear and escape. At their lodging, Clear refuses to remove his mask in front of Aoba, explaining his grandfather told him never show his face to anybody because it wasn't "normal" like other humans and is afraid that Aoba will hate him once he saw his face. Aoba assures Clear that he could never hate him and takes off his mask, revealing Clear's normal-looking face. Afterwards, Clear cooks for Aoba when strange music plays on the TV, causing Aoba immense pain. Clear explains that Toue uses the "Dye Music" song to brainwash people. Later, Clear questions Ren why he doesn't call Aoba "Master" even though he is just an Allmate, with Ren saying that he is only doing what Aoba wants from him.