When does Xia Mingxing's message open?

Chapter 7 of the main line can see what needs to wait until level 30, but there is no ending at this time.

This chapter can only see the ending of Charlie Su and Qi, so it takes the eighth chapter to solve his solution, corresponding to light;

So if you want to meet him, you need to reach level 30, if you want to make a careful strategy, you need to reach level 35, and you need to choose the ending of the sun.