Your dad Sebastian is the Devil king, and your mother is the Grim Reaper queen they were both in love, but your dad's love was fake because he only wanted your mom's power. You're the daughter of them both, and you're stronger than your dad because you have both your mom's and dad's power. You walked into his castle to get revenge back for your mother and saw him on his throne with a cruel smile.. There goes my weak daughter... that got you angry when he said that..