Leveling Up through Eating - Chapter 3.1: Game Start

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Somewhere in the wilderness. As soon as Ruan Youqing cleared up the gangsters, he turned around and saw Mr. Shoufu who came behind him. Throwing away the meteor hammer he picked up casually, Ruan Youqing fell into his arms by coincidence.

Ruan Youqing looked shy: “If Master Shoufu hadn’t arrived in time, you Qing would have been in trouble.”

Ignoring the screams and wailing next to his ears, Master Shoufu who did nothing stretched out his hand to wipe off the blood on the girl’s face, Then he said without changing his face: “The world is getting worse, people’s hearts are not old. Miss Ruan still has to be careful in the future, after all…you are too weak.”

The gangsters: “…???”

- Description from novelbuddy

What would you say is the most valuable thing in this world?