MTL - I Made Scientific Magic - Chapter 15 The Great War in the Castle (for further reading)

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.

Back in 1991, in the face of this golden age, Chen Jianghai swears that he will only live in three words in this life: Lin Wanqiu! The story of a reborn person who built an electrical empire and reached the pinnacle of his life!

- Description from novelbuddy

A Count’s Daughter who lost in the running to become the Second Prince’s fianceé, Camilla. The Prince chose a Baron’s daughter as his fianceé, and the world blessed the two’s love as fated. On the other hand, Camilla who was tailored and elevated as the love’s villain in the end, as punishment she was made to marry a terribly fat and ugly man――called『Toad of the Swamp』from his appearance, a lord of a remote region named Alois.