Space Bombardier Six-Star Evolve Star Gem

A gem containing the purest power of Astral, which can be used to promote the Senshi "<Space Bombardier> Levi".
You can give it to the Senshi via the "Give Gifts" button in the Senshi interface, and you can raise the star level up to six stars.
You need to have a One-Star Senshi before you can give it away, and you can only raise one star level at a time. After promotion, the original star energy will be reset.