Anime, 1boy, A male character with messy gray hair and gray eyebrows to match

Anime, 1boy, A male character with messy gray hair and gray eyebrows to match. He has yellow eyes with black highlights and a wide smile showing his teeth. He is wearing a long white coat with yellow and brown accents, and a brown strap crossing from his right shoulder to his left waist. The character also wears white gloves, blue pants with black accents, and black boots. Behind him is a sword with a red gemstone on the pommel, which contains a clearly visible rune inside