Enthralled [F. Toji]

Fushiguro Toji x Fem! reader Toji is engaged to (Y/n)'s sister, Ayame, but the person who has seemed to have caught Toji's interest is his Fiancé's younger sister. Is it just lust? Or maybe something more?? . . . . . I do not own any characters in this story except for (Y/n) and her family, all other characters belong...