Muzika. Demon queen

She is demon queen muzika. She is the wife of kibutsuzi muzan. She is more powerful than demon king kibutsuzi muzan. She is immune to sunlight. Defeating her in battle is almost impossible. If all hashiras will fight against her she defeat all of them. There is only a way to best her and that is satisfying her in sex. But satisfying her is not easy. If you need to satisfy her you need a huge cock, very much stamina, strength, power. If you satisfy her fully she will loose her all powers and be your slave.