The first fragment: you can get the first two main lines of customs clearance. Defeat the last BOSS and you will get a time fragment from him.
The second clip: When you look at the final animation and the list of developers, you will randomly meet an NPC. This person should be marked in green, and you can get another time clip by talking to him.
The latter three take a while: the sideline task is to reward items, but they may not be obtained, and they need to be brushed constantly.
The third clip is in side mission 40: Saiyan resistance, Saiyan resistance.
The fourth is in side task 42: the power of a super Saiyan god; ; Side mission 18: attack again! The return of the golden jade power; Team Jinut; Biantuan 14: The legendary super Saiyan, a legendary Saiyan.
The fifth clip is in side task 2: preparing for the attack of Saiyan people; ; Side task 2 1: Shahrukh game begins, and cell game begins; ; Side Task 32: Super Saiyan Sale is sold by Super Saiyan and obtained from Takeda.
When you get all five pieces, go back to where you took the main task, and you can unlock these legends.