Divine Spirit of the Spirit Dog 5-Star Evolution Gem

A diamond containing the purest power of the Astral Realm, it can increase the star rank of the Senshi "Divine Spirit of the Spirit Dog‧Yayi".
It can be gifted to the Senshi via the "Gift" button in the Senshi interface, and can raise the star rating up to 5-Star.
You must own a 1-Star Senshi before gifting, and each gift increases only one star rank. After advancement, the existing star energy will be reset to zero.