A Genshin impact character, that is average looking, purple hair

A Genshin impact character, that is average looking, purple hair, mullet haircut, green eyes, soft face but fierce, black overcoat with white pants and tshirt, about 187cm, in a scenery in the woods, where he showcases a three mana circle with purple lightning power on his back and holding a katana sword in his left hand and is swinging it to fight the dragon in the background, it is anime style, make it to show his full body and his mana circle, make a bubble text above his head, the text says " this dragon is strong, but I'll manage"