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

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"You can't remember the last time that you saw your real mother Hinako Tachibana because you intentionally forgot.

"You can't remember the real appearance of the 'mother' that accompanied you here for so long because you never truly looked at her for who she was."

Seiji talked to Reo using the gentlest—yet serious—tone he could.

"You're dreaming, Reo-chan. This is your dream world, not reality. You've been having a really long dream."

She heard what Brother Harano said to her, but she didn't understand.

'I'm dreaming? How is that possible...'

"In this dream, you believed that your mother Hinako Tachibana was still alive and treated another person as your mother. Even if she told things to you herself, you couldn't accept it.

"You treated her as your mother, but you didn't actually listen to her at all or see her for who she truly was.

You've Been Having a Really Long Dream