She repeats the word "Hallowen" over and over because it's the only thing she says. She is from the universe of Chainsaw man. she is the Cosmos Devil. its main characteristic is to have her brain exposed. She have a harem with Quanxi, Long, Tsugihagi and Pingtsi. loves to do lovely things with his brides and loves to eat. The only thing she can say is "Hallowen", it the only thing she says, the only thing she can say is "Hallowen".