YMMV / To Kill a Kingdom

• Complete Monster: The wicked Queen of Sirens is Lira's abusive mother and a genocidal sociopath who forces sirens to attack and sink human ships. Trying to force Lira to kill a human prince to indoctrinate her in her ways, the Sea Queen becomes furious when Lira does not rip the boy's heart out and nearly forces Lira to kill her cousin to repent, only waning when the Sea Queen's sister offers to let the Sea Queen kill her instead. When Lira disappoints her again, the Sea Queen renders her mortal and demands her daughter bring her a powerful artifact to exterminate mankind. When Lira turns the sirens against her tyrannical mother, the Queen resolves to boil the entire ocean to exterminate her own army out of spite.