Kiara Moon Mikaelson is The Long Lost Sister Of The original siblings specially Klaus's, they both share the same father but the thing is that she's just like her niece hope mikaelson....a tribrid!! how come? well she was born a werewolf like klaus but also got turned into a vampire but as ester turned the siblings she didn't realize that she put alot of magic in kiara so it makes her the first ever original Tribrid. her step father Michael found out that he wasn't klaus and kiara's father and found their real father Ansel and killed him with his sword. Michael mistreated klaus badly but kept trying to hunt down kiara and try to kill her but nobody has ever seen her again not even klaus. Then some years later their youngest brother Henry got killed and when kiara found out she got out of mystic falls.