Seventy-Seven/Chrono Link

Seventy-Seven or so he originally named X7 in the past is the major characters in RIVES and Chrono Link, the one who guiding Tokio and Akira in their first time to The World R:3 also one of the adult characters who befriending with. Even though he has flaws and quirky, but do whatever it takes and whatever necessary to protect the kid as adult, due to his terrible incident in the past has made him do it.

He is much likely brother or father to them and the most important members in Chrono Hunter guild, even though his wackiness sometimes makes people little annoyed.