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

Being enemies with Hoshi… Seiji didn't want to think about this.

"If you look at such a possibility, perhaps it is indeed foolish of me to let Hoshi do as he pleases. Yet, I'll still let him choose for himself," Seiji stated adamantly.

"You really are an idiot with no dominance over your harem at all."

"If you really insist on calling me that, then I suppose I am indeed such a person."

"Yet, that type of person is precisely the type that I like." Chiaki changed the topic suddenly and smiled.

"Same for me." Mika smiled as well.

Seiji didn't know how to respond to Chiaki and Mika's sudden direct attacks on his heart. He could only awkwardly avert his gaze.

Karen Miyamoto was having hallucinations yet again.

I just happened to be… drinking tea