I'm Very Happy After Marrying the CEO Husband According to the Agreement - Chapter 10: Sir, is it impossible

Ryu Han-bin, the main character who fell into a new world after being chosen as a ‘suitable person’.

Because of the error in the guidelines, the training is repeated endlessly…

Linky transmigrated to the Magical Land and became the third young master of a noble family. Just when he thought it was time for him to enjoy a life of luxury.

He was sent out for the family’s tribulation, and had to set off to the “Land of Death”

— Black Wind Castle! Here, dark elves, frenzied orcs, and blood-thirsty dragons were regular occurrences! Everyone thought that Linky would surely die, and had even prepared to collect his body.

But just then, Linky awakened the [Super Gourmet System]. As such, things changed.

The Elf Queen loved his fruit salad, while the Orc Saint couldn’t get enough of his grilled steak. The Sorcerer of the Holy Palace couldn’t live a day without the “Linky Brand” whiskey.

Even the Vampire Prince Nikolas would sacrifice anything to get a long-term order of Linky’s fresh blood coffee.

Until one day, when a gargantuan dragon that blocked out the skies came to his door…

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.