You can acquire [Key]s via following contents.
[Ways to Obtain Keys]
1. Play 2v2 Team Battle
2. Quest Rewards
3. Pass Rewards
4. Check-in Rewards
5. Watch Ads
※ There can be changes to sources of Key Acquisition in the future
Furthermore, we kindly note you that the number of Keys obtainable, has daily limits.
[Ways to Obtain Keys]
1. Play 2v2 Team Battle
2. Quest Rewards
3. Pass Rewards
4. Check-in Rewards
5. Watch Ads
※ There can be changes to sources of Key Acquisition in the future
Furthermore, we kindly note you that the number of Keys obtainable, has daily limits.