Moon of Darkness 5-Star Evolution Gem

A diamond imbued with the purest power of the astral realm can enhance the star level of Senshi "<Moon of Darkness> Luna."
It can be gifted to a Senshi through the "Gift" button in the Senshi interface, allowing their star level to increase up to 5-Star.
You must possess a 1-Star Senshi before gifting, and each gift increases one star level at a time. After advancement, existing Star Energy will reset to zero.