Yoru Sato

 Yoru Sato is the daughter of Nyx.

History
Yoru had a hard life. She could never go out in the sun because she's allergic to it, she doesn't have any friends because people are creeped out by her, and she had to go into surgury two times because she was accidentally left in the sun for about two hours each time...

Sun Allergy
Since she is the daughter of the goddess of the night, Yoru is allergic to the sun (hey, it's actually a real allergy, not making this up). She can only stay in the sun for so long, but not too long or else she might get a serious seizure. She had to get surgury twice just because she went in the sun for too long (once for a date, another because of carelessness).

The Rebellion (Group)
When Yoru learned the real truth on why the gods needed the demigods, she was super angry at her mother, and all of the gods. She even holds a grudge on Camp Half-Blood, because Chiron said "It is a demigod's duty to save Mount Olympus and the world." She then runs away from camp and ran into the Rebellion Team Alpha. Team Alpha takes her in as a new teammember, making her the Co-Captain of the group.

Abilities

 * Umbrakinesis: As a goddess of night she has divine authority and absolute control over darkness.
 * Night Empowerment: She's stronger at night or in dark places (e.g. the underworld).
 * Shadow Mimicry: She can morph into (living) darkness/shadow.
 * She can control nocturnal animals.