I Become Master of Danger Zones as Incubus With Mastery In Genetic - Chapter 696 - 116

Mo Yan was an illegitimate child of a rich family and was arranged by her mother to take the place of her sister in marriage to a poor man in order to fulfill the marriage contract set by the previous generation, allowing the Mo family to get their hands on that substantial dowry.

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

Mu Yu, who had just started university, unintentionally downloaded a mysterious hand tour and was brought to a strange and bizarre world, becoming the first player of the ‘Mystical World’.

By chance, Mu Yu joined an ancient sect that had declined for a thousand years. He successfully repaired the sect’s supreme technique, the Secret Manual of Space and Time, and became its spacetime descendant.

After three months, players officially logged into the Mystical World game. Mu Yu was already the pride of South Sky.

Two years later, when the players had grown up, Mu Yu had already become the most dazzling Saint under the starry sky.

….

At the foot of the Misty Cloud Mountain, a young girl in a white dress nestled in Mu Yu’s embrace as she cried, “I, Nalan Yanran, would rather die than marry that young master of the Xiao family. I only wish to marry you in this life.”

“Ding!” You have successfully triggered a 3-star mission! to help Nalan Yanran go to the Xiao family to end the engagement! ”

“Wait a minute, this script isn’t right. Can’t we just not do it?” Mu Yu felt like crying.

“Either way! Either die! ” The System pulled out a 10m long broadsword.

“Stop, can’t I do it…” Mu Yu submitted.

- Description from Novelupdates

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.