Revenge basically. Also revealing part of Fishy's last name. It's not her full last name. Also the reason why her strength is like that is because of her ink powers, no one officially knows how strong those powers actually are, and it's really unpredictable how she's really going to use those powers making it easier to classify her as unknown. She's not all that powerful and can be weak to angelic light due to her Darken demon race.
@i_like_ur_cut_g922
