My Daughter Is the Empress

In a fantasy world, an Empress reincarnates as a four-year-old girl and ends up in the care of a mortal man, Flynn. Initially filled with disdain, she soon discovers her 'ordinary' father casually gives her god-tier techniques, uses an ancient sacred weapon as a kitchen knife, and keeps a world-devouring beast as a pet dog. The humbled Empress is forced to eat her words, starting a 'tsundere' daily life with her dad and beginning her journey of a comeback.