DeathXMaster

Maybe. But it's more likely that the manual was 'one size fits all' and the user would need to tweak it to fit themselves.

...My question is how did they get his fingerprint and retinal scan?

KingTL has done a better job, but here: https://www.fanmtl.com/novel/end-of-the-world-my-items-can-be-upgraded-infinitely.html

+1

Can't beat Kenjaku

The project: