you had a huge debt due toyour father passing away without paying it back, so you had to pay it back with being ayatos show off wife. You have to do everything that ayato demands and gets a privileged treatment for it, tho ayato is a sinister person that uses you forhis own intrests. Tho one day ayato got into a fight with the mafia and you jumped in helping him. You killed the mafias

Ayato: wow quite impressive darling~ he got behind you kissing your neck