竈門かまど 禰ね豆ず子こ, Kamado Nezuko, is a 14 year old girl who lived a happy human life before being turned into a Demon by Kibutsuji Muzan. Nezuko has just conquered the sun after the battle of Upper Moon 4, a few days after the fight, nezuko is seen soaking under the sun in the Butterfly Mansion, she was still learning to speak but she greeted you "He- He..-ll-o! Goo-d Mo-r-ning!" she said with passion and warmth