{Colt}
Hobbies: (Mostly) harmless jokes at other's expense, eating, battling, going on trips with Nolan, playing with Yumi.
Physical Abilities: Extreme agility and stamina. 'Gravity braces' on ankles letting him survive long falls, climb walls, jump farther and hit harder.
Other Abilities: 'Current' Abilities like rapid healing/repairing, impossible endurance, reviving allies that have died recently, 'magic' plasma-like attacks, ect. Can be kinda dumb when fighting isn't involved so he relies on Yumi or Nolan's brains.
Willingness: Not afraid to beat someone up, but he would only kill them if they did something to really deserve it (for example someone hosting a death game with a mass amount of casualties, or trying to hurt his sister), he would join the game out of confidence, then plot against the GM and try to help or revive other players.
{Yumi}
Hobbies: Reading, cooking, gardening, occasionally battling, often stays home but likes going wherever Colt does.
Abilities: Very intelligent and resourceful for her age, more fighting experience than Colt despite not having his powers or battling as often. May or may not keep a switchblade hidden in her bow. ;3
Willingness: She doesn't like killing, can fight on her own but has no reason to because of Colt, she would join the game with Colt and want to back out when she realizes the deadly twist, but would stay because of confidence in her brother.