Capítulo 327: Vol4 Ch52: Self-replication Experiment

Unsurprisingly, Xu Fu completely imploded as his past was continuously changed by the members of the Ultra Space-Time Squad.

For example, saving his companion from him, stopping him from coming into contact with the mask in the first place, as well as various other means to change his beliefs, turning him into a Holy Mother¹ kind of character. 

As his past was being changed, the current Xu Fu could clearly sense another 'himself' awakening within his body as his personality was being erased bit by bit.

If my personality is changed against my will, would I still remain 'me'?

Xu Fu's bright red aura was swiftly disappearing, his Error, also known as his Personal Truth, was quickly being removed, because it didn't fit this world's 'Truth'.