999aethers, aether (genshin impact), genshin impact, ..., 1boy, ahoge, arm guards, artist name, blonde hair, blue background, blush, braid, brown gloves, brown shirt, clenched hand, closed mouth, gloves, hair between eyes, hair ornament, hair ribbon, hair tubes, hand on own face, hand up, heart, heart ahoge, holding, holding letter, implied yaoi, letter, long hair, looking to the side, love letter, low-braided long hair, low-tied long hair, male focus, ribbon, scarf, shirt, short sleeves, simple background, single braid, single hair tube, solo, speech bubble, spoken ellipsis, upper body, white ribbon, white scarf, yellow eyes