Dragon Ball Xenoverse -- Cosmic Castaway: The Heroes of Time Saga

After the defeat of Demigra, the Time Patrol thought their troubles were over. In fact, they were only just beginning. Time Rifts have torn Toki Toki City apart, whole timelines are being destroyed and the Patrol finds itself shorthanded. They're going to need all the help they can get, even from those who may be guilty of altering history... (partial adaption of Xenoverse 2)