How is the story of Sivir Truth Hai Jie triggered?

Received 3 support and the first recruitment. For the first time, I need a sandman, a cat and a tree spirit. Tree essence temple summer random brush. 5F-8F, there are fixed monsters in the graveyard of the gods. After triggering a threesome in the last chapter, you get hershey Lapro's sword and armor (armor store upgrade).

Then practice the initial magic sword. Going to the king can trigger the plot after all the weapons and armor have reached the full level, and you will get the second form of weapons and armor (Luna-Sheila), and then you will get the third form (Luna-Sheila) after reaching the full level, which may require the proficiency of Sister Hai's sword, so you should practice the sword at the full level.

Finally, go to Shuiwu Wangdu, and the plot can happen. After the third form reaches the full level, returning to Wang Du will trigger the plot of the Red Crescent Temple. After the Red Crescent Temple defeats Sheila, Sheila will let you go to the 20F of the Summer Temple. Where you couldn't go before, you will fight the goddess of pilots. After the defeat, you will get the last weapon, Lax Sea.