Sanemi Shinazugawa (17) is a brash and aggressive guy, who's always tough and short tempered. He has multiple scars on his body from slaying demons. Has white messy hair and no eyebrows. Masachika Kumeno (17) is Sanemi's best friend. He's the opposite of Sanemi, being very sweet and kind, along with energetic and hyper. He has 2 small scars on his cheek. He taught Sanemi how to weild a katana. Both demon slayers are ranked Kinoe and use wind breathing.