umineko no naku koro ni, ushiromiya battler, lucifer (sister of purgatory), nimu, wallpaper, 1boy, 1girl, barefoot, black hair, blush, brown hair, duo, erect nipples, erect nipples under clothes, feet, female, femdom, foot licking, footwear, foot worship, formal, impossible clothes, kneepits, legs, licking, long hair, male, malesub, nail polish, necktie, red eyes, red hair, saliva, short hair, socks, soles, stakes of purgatory, suit, toenail polish, toes