Cronus' system: Against the gods - Chapter 95 You’ve read this before! Don’t unlock

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

Ning Shu had dropped dead. But in a burst of good fortune she became a task-taker in charge of counterattacking for pitiful cannon fodder. Thus, Ning Shu, in one world after another, took all kinds of life roles, encountered all kinds of ‘you’re heartless, you’re ruthless, you’re making trouble for no reason’ people. She encountered all sorts of white lotus flowers, green tea b***hes, scheming b***hes, by the batch.

Does any true beauty still exist in the world!? bellowed Ning Shu angrily. You annoying trash! I’m just here to counterattack, please don’t get in the way of me completing my task. Transmigration main character, reincarnation main character. There’s only a lazy task-taker, no undestroyable main character halo. Ning Shu had no choice but to painfully gather moral integrity in each of the worlds.

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- Description from novelupdates

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!