The Ruined Death Knight - Chapter 3: Rewards

In a modern world where cultivators need a place to cultivate or vent their boredom, there are private businesses that set up instance dungeons with the aid of technology and cultivation magic to enable cultivators to train and commoners to experience the life of cultivation. They are called dungeon suppliers.
Xie Jin's one and only dream was to be a dungeon supplier and when his only relative passed away, the relative's inheritance gave him a plot of land and surprisingly, a 'System' Module which the relative had previously used.
With the help of the system, Xie Jin decided to pursue his dream of becoming the number one dungeon supplier.

The Empress does not grant my resignation.

Found a suitable body named Bai Xiao. Reincarnating into the World of Elementalists.

“Mission: Overpopulation of carnivorous fish in the lagoon.

Please kill 666 carnivorous fish in order to prevent the destruction of the lagoon’s ecosystem.

Reward: 20 Balance Points.”

“Mission: Forest fire.

Extinguish the fire.

Reward: 200 Balance Points.”

- Description from Novelupdates

Takumi Hirooka(20) works at a black company. He stopped at a convenience store before returning home, and then gave his beloved dog Leo a treat before eating his own dinner that he bought at the store.

After eating, Takumi stood up in order to take a bath, but due to exhaustion from overworking, he fell to the floor and lost consciousness.

When Takumi opened his eyes again, he was in an unfamiliar forest. But what he thought was a large wolf sitting next to him, was actually his dog Leo…

Leo was now big enough to carry people on her back, and could defeat monsters that appeared in the forest in an instant.

A woman they meet in the forest, Claire, tells them that Leo is the most powerful of monsters, a Silver Fenrir.

Takumi couldn’t help but think that this world was all a dream. But after speaking with Claire and witnessing Leo’s strength, he finally realizes that this was another world that he had come to.

They are invited to Claire’s great mansion, and Takumi eventually lives there.

The young man Takumi and the dog Leo who were somehow transferred to this world.

As the powerful Silver Fenrir, Leo will protect Takumi.

While Takumi discovers that he has a gift, it is an ability called Weed Cultivation.

…Could such an ability be useful?

Takumi was tired from so much work, but he uses his ability to live with Leo and Lady Claire. This is his story.