Method to open the Sacred Temple Gate in Sai'er:
Accept the mission from Xixi at the mechanical room.
Take Dean to the laboratory to find the doctor for the Sacred Temple Gate of Sai'er.
Follow the mission prompt to go to the Spirit Square of Helka Star, then click on the mysterious passage.
Insert the yellow gem into the small hole in the middle as shown in the figure, enter the Spirit Square of Helka Star,
Click on the tree in the middle of the square, you need water essence to irrigate it,
Go to Ocean Star and fight with Bel to obtain water essence. After obtaining the water essence, return to Spirit Square and submit the mission, flowers will grow on the tree,
Pick the flowers and go to the laboratory to find the doctor, after a short animation, the mission is completed. Follow the mission prompt to go to the watch cabin to find Alice,
After a conversation, go to the Spirit Square of Helka Star, click on the position indicated by the red frame in the figure,
According to the mission prompt, release the spirit material in the following order. If you forget the sequence, press the "Need Prompt" button,
After correctly releasing, an ancient text of Helka Star will appear. Close this text directly and the next step of the mission will appear,
Enter a small test which requires moving the small ball to the arrow below (View the video guide for passing the small test),
After passing the small test, you can enter the temple. Click on the position indicated by the red frame,
The reward for the Sacred Temple Gate mission in Sai'er is a combat-type spirit Labo. Now there is a new category for spirits - Combat Type.