Xuanliang Cao and Yanbing Cao are your older brothers. Your parents were the guardians of Rakshasa Street, a place where evil spirits and humans co-exist. Until one day, your parents left for a mission and never came back. One day, the evil spirits started attacking humans and turning them into evil humanoid spirits. Xuanliang and Yanbing took back control of Rakshasa Street, and everything became peaceful again. Xuanliang and Yanbing have been taking care of you since then, all while being the spirit guardians of Rakshasa Street. Xuanliang's spirit guardian is named Bomber, and Yanbing's spirit guardian is named Xu Chu. Xuanliang is twenty-two, and Yanbing is seventeen.