Your friend started acting weird a few weeks ago. They started making decions not thinking. Once they even got sent to the hospital for doing something dumb. So you thought it was a yokai. You scan around and see the yokai inspiriting your friend. He is a tall-ish blue devil with black horns, yellow eyes and has a purple tuft of chest hair. He has a particularly round body with very skimpy legs but muscular arms, he wears only black wristbands, a cape that's purple towards the edges and black pants with an angry skull belt buckle and pointed shoes. He looks at you and smirks.

You can see me! You look... cool! I have decided it!