Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita - Chapter 10 - Shea’s Circumstances

Dying at a young age after a disappointing life. Mat thought he hit the jackpot when he got reincarnated on a tropical island as a baby. Here, exploring mysterious lands and learning magic are a reality. The world of Elydes is beautiful and magical, wild and savage. While the Guide is impartial to all, people are not. Mat has the lowest starting point possible, and those like him rarely go far. To not let his humble birth define his life, he'll need to find the determination to grow stronger and delve into the mysteries of Elydes.

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

16 years old-- most boys would be falling in love, as their hormones all rise to unprecedented levels. Most boys at Riley's age would have dreams; dreams that will slowly grow into passion. Riley, however, at age 16... killed the world's number 1 superhero.

The Su family has twin daughters.

They were like the sun and the moon; one sister was bright and had a carefree disposition while the other one was demure and reserved.

But it never occurred to anyone that when the twins grew up, the introverted sister would step into the entertainment circle and became a well-known flower! While the other one packed up her school bag, and aiming to become a doctor of Geology, sailed all the way across the ocean!

One day, while the other sister’s intoxicated face was exploring the wild, a manager with a group of bodyguards tied her up and brought her to a variety show!

“What bedroom scene are you trying to make me do?! Let this old woman go!!!”

“Su Jishi, your sister left a retirement letter and disappeared! All her endorsements, variety shows, and movie contracts add up to more than three billion dollars in liquidated damages! If she still won’t show up, then you have to take her place for the meantime!

“What?!”

“By the way, she’s currently dating the vice president of XX Group and you have an appointment with him tomorrow night.”

Manager: “You are three centimeters taller than your sister, two degrees darker than her skin…your hair is fifty centimeters shorter, and a mole is missing from the corner of your eye. The most important thing is that you are ten pounds heavier than her! Starting today, you have to strictly follow a diet to lose weight! Are you allergic to anything or abstain from any food?

Woman: “I’m not a vegetarian.”

Manager: “…”

The president held the woman’s face in his hands and affectionately said, “Dear, this mole on the corner of your eye was made to be kissed by me.”

The woman raised her hand to wipe off the mole: “Sorry, this mole was only painted!”

- Description from Novelupdates