Chi-Hyun was now sure which choice to make after hearing the information Chi-Woo brought.

Chi-Woo’s eyes widened at Chi-Hyun’s words. Yes, if it was his brother—if it was the man known as the legend among heroes, he might be able to find a way!

–Chi-Woo.

However, what his brother said next was extremely shocking.

–Withdraw from Shalyh.

This meant only one thing. “You’re telling me to run away? And give up on this city?” Chi-Woo became speechless, and Chi-Hyun’s silence was all the confirmation he needed. Chi-Woo asked again, “Why? You didn’t say that when I came back the first time. You said to try to change the future.”

–Yes, that’s what I said then. But after hearing the information you brought back, I’ve made my decision.

“But what I was told might be lies, right? Since the information was from a great demon!”

–Yes, that’s true. But I don’t think it’s a lie. It sounds plausible after connecting it to what I know.

Frankly, Chi-Woo also felt the same way. He sensed that Shersha and the other great demon hadn’t been lying. But even then…! “We can’t save it? Is it impossible?”

–It’s not impossible, but…

“Then—”

–Chi-Woo.

Chi-Hyun let out a long sigh.

–Have you heard of the Kardashev scale?

Chi-Woo shook his head at Chi-Hyun’s sudden question.

–It’s a scale that measures a civilization’s level of technological advancement based on its energy use.

When Chi-Woo tilted his head, Chi-Hyun slowly explained the details of the scale.

There were three types in the Kardashev scale. Type 1 was a civilization that could harness all the energy of its home planet, Type 2 was a civilization that could...