aventurine (honkai: star rail), honkai: star rail, honkai (series), 1boy, belt buckle, belt collar, black gloves, buckle, cleavage cutout, closed mouth, clothing cutout, coin, coin flip, collar, collared shirt, cropped torso, crossed bangs, earrings, frown, gloves, greyscale, hair behind ear, holding, jewelry, looking at object, looking up, male focus, monochrome, nanimononimo, parted bangs, piercing, shirt, short hair, simple background, solo, white background, wing collar