C637 Sun and Moon Diagram of Mountains and Rivers

"The mountain and river sun and moon diagram in my hands is an important clue to an ancient ruin. My big brother doesn't just want to suppress me, he also wants to get this thing."

"If you are willing to join my team, then we will have the chance to explore this ancient ruin together in the future."

"I believe you should know the value of this pill."

After saying that