Ai-chan's Treasury

As we usher in the new year, Ai-chan has secretly opened my Treasury for Captains!
* More rewards than you can even imagine! Crystals, Sündenjäger fragments, and 4-star Upgrade Materials, among others...
* Captain, fight hard and complete event missions to claim these awesome treasures!
==Details==
* Captains must be Lv.15 or higher to participate.
* Clear event missions to get Ai-chan's Key!
* Use 1 [Ai-chan's Key] to open Ai-chan's Treasury once and get free rewards!
* Explore Ai-chan's Treasury to possibly get:
** 4-star Upgrade Materials
** [Sündenjäger] Souls
** Lots of Crystals!
*** Bear in mind that the precious emblem [New Journey] is hidden in the third treasury!
* The event is presented in the form of limited supplies with gacha elements.
* There are 3 treasuries, each can be opened 33 times. Only after you have opened the previous treasury 33 times can you open the next treasury!
* When the event ends, [Ai-chan's Key] will be recycled at 1000 Coins each, please take note.
 Event Missions
Objective 	Reward
Daily: Login to the battleship. 	
Daily: Complete 2 story stages. 	
Daily: Use Kallen or Kiana in battle 1 time. 	
Daily: Use Kallen or Kiana in battle 3 times.	
Daily: Spend 100 stamina. 	
Get Limited Supplies 20 times. 	
Get Limited Supplies 40 times. 	
Get Limited Supplies 60 times. 	
Category:Honkai Impact 3 Wiki