Tsuki ga Michibiku Isekai Douchuu - Extra 56: Manga 54 SS Sinking Metropolis

As the last abyssal demon in the world, Wen Long was pulled into various worlds to do tasks by a guy who claimed to be a system. The goal of her mission was to save those villains who had been blackened for various reasons…

- Description from Novelupdates

Upon being reborn, she immediately offends a vicious two-faced bigwig.

Let go of your burden and chase the footsteps of your predecessors from the shadow.

Blinded in the past life, hence train the body to locate enemy by sound.

Upon rebirth, using the future information, obtain the best equipment! Purgatory transcript on strategy! The strongest thief skills!

With a dagger in my hands, slaughter the world of those who oppose me.

Traditions does not die only fade away

- Description from Novelupdates

Mediocrity is the normal state of most people, and some of them can’t even reach the normal state~ A young man from a small town, ugly and inferior, disliked by relatives and friends, mediocre grades…

All these changes started with a beam of light going to the university train, and the boy was bound to the high-quality male god system.

The days are getting more and more hopeful, and the system is really fragrant:

As long as you learn, you can modify your own bugs;

As long as you do good deeds, you can get corresponding banknote rewards;

As long as you are praised, you can get relevant talent blessings;

…

This, it’s hard not to love, okay!

- Description from novelbuddy