One Piece : Earning One Trillion Berries Before Retiring OP

Kahn travelled into the world of one piece even before Roger started his adventure.
He who has had a long and adventurous life as a vice admiral on world of one piece and is now contemplating retirement.
He finally activated his Golden Finger, a super money system that offers him the opportunity to restore his peak condition and potentially achieve eternal life. However, the cost of these benefits is quite high, and he realizes he needs to accumulate a significant amount of money to achieve his goals.

for additional arts and chapters
https://www.patreon.com/SUN_MOON_EARTH