1girl, backless_outfit, black_sleeves, breasts, closed_mouth, detached_sleeves, from_behind, honkai_(series), honkai_impact_3rd, johnny-chan, leotard, long_hair, long_sleeves, looking_at_viewer, looking_back, medium_breasts, ponytail, profile, purple_eyes, purple_hair, raiden_mei, raiden_mei_(herrscher_of_origin), sidelocks, smile, solo, white_leotard