Upgrade Costume

Each costume can be upgraded up to +5 using its costume design.

Each time a costume is upgraded, skill stats are enhanced, cool-down times are reduced, and SP requirements decrease.

If you already have a costume and obtain the same costume by drawing or from rewards, you will obtain the design for the costume instead. If a costume cannot be upgraded further and you obtain the same costume, you will receive a Golden Thread instead of a costume design.