My Spirit Revived and I Became the Richest Man in the Fairy World by Fishing.

Under the background of the revival of spiritual energy, the global ecology has returned to its peak period, and animals have begun to be purified and divided into levels one to ten. Zhang Wen, a low-level fisherman who makes a living by fishing, was looking at a complete fish album purchased from a street stall when his spiritual energy recovered. As a result, a system popped up in the album. It seems to be called something... "Fishing Upgrade System"!