kayu_(yukagoin), boothill_(honkai:_star_rail), year_2024, 1boy, artist_name, black_eyes, black_gloves, black_hair, black_hat, black_ribbon, black_sweater, brown_coat, bullet_earrings, closed_mouth, coat, crossed_bangs, cup, disposable_coffee_cup, disposable_cup, earrings, gloves, hair_over_one_eye, hair_ribbon, hand_up, hat, holding, holding_cup, jewelry, long_hair, long_sleeves, looking_at_viewer, male_focus, mole, mole_under_eye, multicolored_hair, one_eye_covered, open_clothes, open_coat, parted_bangs, red_pupils, ribbon, simple_background, smile, solo, streaked_hair, sweater, turtleneck, turtleneck_sweater, twitter_username, upper_body, white_background, white_hair, commentary, highres, symbol-only_commentary, honkai:_star_rail, honkai_(series)