Idle Fish Goes Ashore

A 30-year-old Chinese 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? 
Note: This novel have an open ending with multiple possibilities, all fans are welcome to imagine an ending together.

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NEET Receives a Dating Sim System

imperfectluck

"Seiji... what’s all this?" Mika was still confused.

"You heard it as well—these are all presents from Yui Haruta, my older sister. I suppose it’s... her encouragement." Seiji smiled. "She wishes for me to become a Yin-Yang Master and meet her again... probably."

"Encouragement... why give me and Kagura-san presents as well?"

"She probably views Uehara-san and Kagura-san as Haruta-kun’s important companions," Natusya interjected. "I assume she hopes that the two of you will be able to assist him in the future."

"I concur with Natsuya," Seijia agreed.

"Oh..." Mika nodded in understanding. "At any rate, it’s a good thing, right?"

Seiji nodded. "Yep, it’s a good thing." He put away his cell phone and picked up the Spirit Raising Talisman. "This present is for Mika... how can she use it?"

My Sister Is Amazing