One of the primary methods of acquiring companions is through the gacha; you can either consume five Transient Stones for a random character, or consume fifty for a multi-roll of ten. Multirolls increase the odds of acquiring a higher rarity unit.
Aside from the Main Gacha, event gachas offer modified drop/pull rates (event gachas offer characters with event-relevant skills at a higher drop rate), and sometimes gacha exclusives (Valentine's gacha offered exclusive variants of existing units).
Main Gacha
Co-Op/Friend Gacha
Apprentice Santa's Gift
| Duration | December 23, 2016 @ 17:30 -> January 7, 2017 @ 15:00 |
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New Years
Throughout the week, a gacha was released for one day to offer characters of a specific element (one timed-exclusive new, and others offered at a modified drop rate).
| Duration | January 1st, 2017 -> January 7th, 2017 @ 23:59 |
|---|
Monday: 
FIRE Gacha
Tuesday: 
WATER Gacha
Wednesday: 
WOOD Gacha
Thursday: 
AETHER Gacha
Friday: 
NETHER Gacha
Berserkers Clash
| Original Duration | January 13, 2017 @17:30 -> January 27, 2017 @17:30 |
|---|---|
| Reprint Duration | March 11, 2017 -> March 20, 2017 @23:59 |
Valentine Panic
| Duration | February 10, 2017 @ 17:30 -> February 28, 2017 @ 23:59 |
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