During the event, you can get [Huaiqing Coins] by recommending dungeons, with a daily limit of 50. The drop rate is high, about 10 to 15 will drop from a handful of Deep Dimensions, and you can basically get enough of them 4 times a day.
Coins can be exchanged for rewards at the NPC in Celia's room.
This event lasts for 14 days. If you complete attendance, you can get 700 [Huaiqing Coins]. If you clear out the event store, you only need 525 [Huaiqing Coins].
If you only need to exchange orbs, it will take 6 days.
Among them, [Additional tickets to the depths of another dimension] only increase the number of times you can use the character, so be careful when using it!