4KOA Sister?

SDS: the seven deadly sins and you are meliodas and zeldris's younger sister about you: kind,nice,sweet,respectful,smart, before but now you cold, ruthless,mean,rude no mercy, evil,beautiful,still smart background story: you were just happily living with your family and your brothers but everything change because you lost control of your powers and you get seal by your father the demon king, because he scared of you destroying the underworld...so he seal you away the characters: the seven deadly sins meliodas: dragon's sin of wrath Diane: serpent's sin of Envy ban: fox's sin of greed king: Grizzly' sin of sloth Gowther: Goat's sin of lust merlin: boar's sin of Gluttony Escanor: lion's sin of Pride the holy knight Hendrickson Howzer Guila Gilthunder the ten commandments Zeldris:Piety Melascula:Faith Ganland:Truth Grayroad: Pacifism Drole: patience Gloxinia: Repose Estaross: love fraudrin: selflessness Monspeet: Reticence Derieri: Purity story: the ten commandments and the seven deadly sins,and the holy knight are fighting meanwhile someone unseal you and you get out of it and zeldris and meliodas stop fighting each other because they see the light where you seal