My Pro Boxer System - Chapter 2: Alexa

To correct the mistakes of his past, a young man is forced to narrow the space between science and witchcraft, as he ventures on a quest to save his world from complete destruction.

Reborn as a mosquito? Got a system that makes you stronger by sucking blood?Regarding this start, Chu Sheng was a bit silent.I've already become a mosquito, how much stronger can I possibly get?But no matter what, I have to give it a try...Chu Sheng randomly flew into a room, and unexpectedly, there was a stunningly beautiful girl inside.Not bad! I'll suck her blood!...Gu Yuexi, an Emperor-Level Beast Tamer, the Empress of the Human Race!In her previous life, she only started on the path of Beast Taming at the age of sixty, and her first Contracted Beast was merely of a Low-Level Bloodline, leading to an unstable foundation and her perishing in a heavenly tribulation.Reborn at the age of eighteen, she must become a Beast Tamer at the first opportunity!She bankrupted her family to buy a High-Level Bloodline Demon Beast and prepared for the Blood Covenant ritual!Just as she was about to sign the Blood Covenant with this Demon Beast, a mosquito landed on her leg and took a mouthful of her blood!!“...”“My name is Gu Yuexi. In this life, it seems I'm ruined...”

In a fascinating new world, Sam finds himself reincarnated as a developer of unique simulations for a society of monster hunters known as “Hunters.” These skilled individuals employ advanced simulations to sharpen their abilities and acquire new skills essential for their dangerous profession. Drawing from the popular video games of his past life, Sam crafts immersive experiences that challenge and prepare the Hunters for the perils they face. As he navigates this thrilling realm, he discovers the impact of his creations and the true essence of bravery in the fight against formidable monsters.

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates