Yoshiki and Hikaru have been best friends since childhood, but after Hikaru goes missing in the mountains for a week, the person who returns feels like a god-tier imitation. Known in Japanese as 光가死んだ夏, this haunting story explores the terrifying bond between a boy and the supernatural entity that has taken his friend's place. When you realize your best friend is no longer human, do you run in terror or stay by the side of the monster wearing his skin? Experience the bone-chilling atmosphere and visceral horror of this modern masterpiece. If you want to read manga online, dive into the full English chapters of this top-tier supernatural mystery today!