COTE : There is Something Wrong With Hikigaya - Chapter 83: Selflessness Is a Disease

Leon transmigrated and became a lab rat for Hydra. But he ended up awakening the sign-in system.[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]He starts by destroying the Hydra Base.He accumulated some time and got himself another reward![Ding! Get the sign-in reward: Sun Breathing Technique.]

My method in getting stronger is very simple—eating.I just need to eat artifacts.I've regressed, so I'll be able to eat as much as I want now, right?

Talent? Unnecessary! Wealth? Doesn’t matter! Brain? Eat it!

Even if one was the greatest of gutter trashes with zero redeemable qualities, as long as they had a System, they are bound to reach the pinnacle of life.

Compass Carburettor, a dirt-poor orphan with absolutely zero f**king qualities managed to reach the peak of the business world by the age of 35, all while relying on his Money-Making System like a blinded barnacle.

But at the peak of his life, he was betrayed by his System.

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.