Solo Leveling: Monarch of Knowledge - Chapter 15 - : No Pain no Gain

This novel is also known as Transcendental Mechanic

What do you do when you wake up and find yourself inside the very game that you love?

What do you do when you realize you that you have not only become an NPC – you have even been thrown back in time to before the game even launched!

What will happen when our protagonist’s two realities coincide?

Han Xiao was a professional power leveler before his transmigration. Using his past life’s knowledge, Han Xiao sweeps through the universe as he prepares for the arrival of the players. This is definitely not your typical transmigration novel.

- Description from novelupdates

Ruan Yōu became a brainless cannon fodder in the Mary Sue entertainment novel, with fair skin, a beautiful face, and long legs. She was criticized by fans as “trying to climb up” after looking at the top male lead too much, and the female lead took the opportunity to suppress her, causing her career to plummet.

Ruan Yōu accepted her fate and decided to retire from the industry to study finance and live a laid-back life as a salted fish.

However, her billionaire parents and CEO brother came knocking on her door, their eyes filled with guilt.

Ruan Yōu: ?!

Retiring forty years early and living a life reclining on the couch as a rich woman has just arrived!

**

Fu Jiazhan had known since he was a child that the little princess who had been betrothed to him had gone missing.

Mrs. Ruan spent her days in tears, holding his hand and choking out, “If Yōuyōu hadn’t gone missing, you and she would be about the same age, and you could have grown up together and taken care of her.”

Fu Jiazhan remembered those words, and when Yōuyōu returned to the wealthy family, he prepared to take care of her as her fiancé. But his future mother-in-law found three rivals for him.

- Description from Novelupdates

Song Yaoyao had already died in her previous life. Her life ended on the day of her 19th birthday. Cause of death: heart failure.

In the interstellar era, the starry sky group came, and human beings stepped into the starry sky, opened the door of psionic energy, and stepped into practice.

Jiang Chen pushed open the door of psionic energy, but he felt that there was something wrong with pushing it open…

Your body has awakened the [Toughness] skill, which is strong and resilient.

Your bones awakened [hard], the opponent stabbed your body with a sword, and the long sword was broken by the bones.

Your hair has awakened [fork], and the sword qi has been divided into thousands, and the net is spread.

Your stomach digested a panacea, awakening [digestion], endless spiritual energy, and instant digestion.

Until one day…you awakened the [Perpetual Motion Machine], the heart kept going, and the power kept going.

Years later, you realize in a trance that your body is already on par with gods.

- Description from novelbuddy