Ally progression

Allies can be raised to have higher stats and skills. The following is a list of what the player can do to allies.

Bond
The player can increase their bond with an ally by clearing intimacy rooms. Each time they clear a room, their bond will increase by 1 up to a maximum of 5.

Potential
Use coins and materials to unlock an ally's potential and raise his ATK and HP stats. Certain passive skills, like Potential Skills, can only be attained through unlocking potential.

Potentials divided into tiers where N/R-rarity allies have 6 tiers, while SR/SSR-rarity allies have 12 tiers. To reach the next tier, the player must unlock all six potentials in the current tier.