Legendary Hero is an Academy Honors Student - Chapter 30

Li Quangqing traversed to the cultivation world and became a family fisherman, starting with twenty acres of fish ponds.Unexpectedly, every time spiritual fish were harvested, a reward orb could be obtained.[Harvested one adult big green fish, received a lower-grade water arrow talisman!][Harvested one adult iron bone crab, received the “Gengjin Sword Technique”!][Harvested one adult longevity turtle, received the “Gui Sui Shou” pill, prolonging life by twenty years!]...Since then, Li Quangqing watched the tides rise and fall in the world, the wind and clouds changing, wanting only to raise fish and become immortal peacefully.Until thousands of years later, a certain Water Virtue True Immortal appeared out of nowhere, shaking the immortal realm, capable of covering the sky with one hand.“Since the Milky Way is also a river, it's okay for me to use it for fish farming, right?”

A human from Earth is thrust into the [Hunter x Hunter] world, becoming the Zoldyck family’s defiant, red-eyed prodigy. They call me a genius and the rightful heir, but I say that’s Killua’s burden to bear.Armed with crimson eyes, and a subtle yet powerful system, I’ll rewrite destiny, upend the world, and embrace the chaos with a wicked grin.

A game descended upon reality. A dimensional gate opened.

Beasts from the dungeon stared out intently. The human world was in danger.

Fortunately, the whole world awakened to new powers. During their coming-of-age ceremony, everyone had the chance of obtaining new jobs and abilities, such as Knight, Mage and Archer.

Those who awakened battle job classes would become heroes.

Those who awakened other job classes would serve in logistics or become cannon fodder.

Lin Sen awakened the Farmer job class, which was acknowledged as the weakest job class. Aside from harvesting crops and caring for flowers, he would rear cattle and sheep.

Fortunately, he awakened the God-tier Farm System.

Lin Sen decided to plant crops on his own!

On the first day of planting crops, he obtained the seed of the ancient Tree of Life.

Then, he obtained the Nine Leaf Sword Grass, God Binding Vines, Corpse Stench Demonic Vine…Various god-tier plants appeared and shocked the world.

Other people exclaimed, “What job class is this? He can actually clear the final dungeon solo!”

Lin Sen claimed, “I am just an ordinary farmer.”

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates