rikuguma, acheron_(honkai:_star_rail), year_2024, 1girl, black_choker, breasts, choker, cleavage, grey_hair, hair_ornament, halterneck, huge_breasts, looking_at_viewer, multicolored_hair, purple_eyes, purple_hair, simple_background, single_bare_shoulder, smile, solo, streaked_hair, upper_body, white_background, absurdres, commentary, highres, honkai:_star_rail, honkai_(series)