Daidara

A boy longing for friends transfers from the desolate countryside to a bustling cyber city. After making friends with a clone girl, his newfound happiness is shattered when their school is attacked by a terrifying creature: a "yokai." Suddenly, the boy transforms into a giant creature himself... Could the boy be a yokai monster himself?! [Original] https://viewer.heros-web.com/episode/2550912964764483552