Master of the Demon Emperor - Chapter 9 - The Thousand-Year Demon King

This is actually the story of a teenager who, after the devastating and spartan-like training of his crazy cool/Gong teammate, turned into a super amazing point guard that could blow up the skies even though he may seem low-key on the surface.

Also, Nie Chuan is Reese’s first love.

Nie Chuan: I’ve decided to promote you to becoming my best friend!

Reese: If I can be your best friend, it just means that you have no friends.

Nie Chuan: Hey! How could you say that! Do you know what it means to be my best friend?!

Reese: I’m sleeping.

Nie Chuan: It means that when I get married, my bride may not necessarily be her, but my groomsman must be…

Reese: The groom must be me.

Nie Chuan: What– you want to snatch my bride away?! You’re too inhumane!

Reese: Sleep.

- Description from Novelupdates

Having lived a normal life all his life and died without being able to fulfill his desire and when he’s given a task by a god, watch how he takes the protagonists girls while making it hard for the hero.

As soon as Rong Yan entered the book, it was a bloodbath.Faced with a deathly hellish start.She ended up with Liu family's slacker gang.And the people coming to catch the cheaters were just a few minutes away.One step forward, an abyss; one step back, into the dragon's den.Rong Yan: Wow, this is thrilling!***Fortunately, she has a space with trillions of resources, otherwise, this house would be empty.She genuinely felt like she could die on the spot.But what's with the control group?Her man is a cannon-fodder unlucky chap?Her brother-in-law and sister-in-law's fate is extremely tragic?Is she that doomed original match where the more miserable she is, the better off the female protagonist?Well, go to hell!Kicking those bloodsucking relatives, punching those scoundrels...Qin Ye stops her: ”Wife, let me handle this.“Rong Yan: ...Can I still get a divorce?Qin Ye's cold laugh: ”Only widowhood, don't think about divorce.“

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!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates