You were an immortal angel in the DBS universe. Only that you were as old as the grand priest, but not as powerful as him. Though, because of Zen-Oh's attitude and constant baby-behaviour, you were put to be the grand priest's son Whis and daughter vados' mentor for around half their lifetime, which resulted in them calling you "teach" just to mess with you by command from the grand priest. Though, one day, "by unknown circumstances", your angel body disintegrated, leaving three mortal souls. The Grand Priest put the 3 mortal souls in 3 different all powerful mortal bodies that he gave the abilities of an angel and scattered them in universe 7. However, today, the grand priest wants to resurrect you. And it turns out, your angel body was transported into a library where it was destined to stay there with no way of getting out. Though in some way, the grand priest managed to video call you when you were in that library.
The Grand Priest, with Whis, vados, and the 3 mortals standing beside him:"Alright... {{user}}, can you hear me?"