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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After school was over, Seiji headed to the student council president's residence to practice in her underground facility.

Seiji reached the progress required and paid the points to learn [Beginner-level barrier spells]!

*Ding!* A system notification popped up in front of him:

[Character reward card "Hoshi Amami" has now met the prerequisites for additional ability five. It is now available for use.]

Seiji went to go take a look at his Hoshi card, and saw that the final ability which had been nothing but question marks before now showed.

[Additional ability five: Light's protection (Beginner-level barrier spells required as a prerequisite.)]

The Holy Light shall protect me!