Hidden Warriors From The Past (BBS and The Crystal Crew Crossover Warriors AU)

From 600 years ago. a group of warriors that are friends from the past about 8 years...a war has happened between a group of villains and a group of warriors, in the legends called them "The Crystal Warriors of The Crystal kingdom" but... during the war The Crystal Warriors of The Crystal kingdom got hurt very badly. they ran away together but... they ran of power to run. they lied to the ground and dissapeared in thin air and trapped in their crystal

One day... two of the warriors in the group called "The BBS Warriors" found all the crystal that was lost in 600 years and brought it back to their friends. Will they know those are the warriors of the crystal kingdom from 600 years ago? Will the Crystal warriors remember their own past? read the book to find out.