MTL - Self-cultivation of Male Supporting Role - Chapter 383 not eligible

After three years of hidden marriage, she has always been well-behaved and obedient, and she never made a fuss when she saw him having an affair with others.

On the day he Bai Yueguang returned to China, she silently handed over a divorce agreement.

He asked in a cold voice, “Why, do you have someone you like?”

She smiled lightly: “Yes, if you don’t admit that I am your wife, someone will always admit that I am his lover.”

Later, she was recognized by the Xie family and became the daughter of the Xie family that even he could not afford.

Seeing her doing well among men, Gu Jinmo realized that the love roots she had planted in his heart during those three years had already grown into towering trees, imprisoning him for the rest of his life.

- Description from novelbuddy

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.

A world where all of the greatest in all dimensions have gathered.

Three out of five were the strongest in their world, and one of them was considered the strongest in history.

A crazy world where a wandering goblin would be above level 90.

Asgard, otherwise known as “Heaven above the heavens.”

In a world where all of the monsters of the worlds meet, Vulcan’s new adventure begins.

15 years ago the world discovered magic as well as mythical beings (basically beings from various legends) in another dimension. Humankind learned to summon these dangerous mythical beings and use their power to great effect. Seven countries formed contracts with these “mythical beings” and gained their allegiance as a result. The mythical beings will choose their summoners on their 14th birthday and give them a stigma. Schools have been set up to train summoners and magical swordsman (basically bodyguards that give the summoners time to cast their spell) as a result.

15 years later after the finding of magic Kazuki Hayashizaki is chosen as a summoner and given a stigma to indicate that. This is surprising since males aren’t chosen as summoners due to their low amount of mana compared to females. As the first male to be a summoner Kazuki is under a lot of scrutiny by almost everyone.

To complicate matters his sister (who’s a magical swordsman) is against him going into summoner school to train there as a summoner. Because summoners and magical swordsman have a cat mouse thing going on where summoners look down on magical swordsman as inferior so his sister naturally is against him going there. She’ll stop him even if it means going to war.

Kazuki however is determined to thrive in summoner school and has already determined to give it his all. Even if he’s the lowest ranked student (ranked E) and his fellow students intend to demean him he’ll prove himself as the strongest summoner.