Chapter 725 Sister, Save Me

Li Chen said was equivalent to the grenades of later generations.It's not that deep of a technical skill, but it's mainly about the idea.Once the idea is unlocked, with gunpowder and steel ball manufa...ught this letter here, which is considered a meritorious service. So, I saved your life, and there's no need to think of other ways to repay the favor. Let's just call it even.""Get well soon."After L...