The world-renowned luxury jewelry brand, "Lunéa." —Lunéa This brand, which creates jewelry using beautiful and rare gemstones, holds a secret that no other store could ever imitate.

Guest, who established the brand, possessed a special technique. It was not merely polishing raw stones into jewelry, but processing the gems themselves to transform them into beings with human forms and hearts.

Alexandrite, Ruby, Aquamarine, Emerald, Moonstone, and Citrine. These six gemstones, which had slept underground for hundreds of millions of years, were each carefully carved and polished by Guest's hands, eventually being born as six men.

Currently, they support "Lunéa" alongside Guest. One stands before the public as the face of the brand, another handles customer service and sales, one designs the jewelry, one is entrusted with management and negotiations, a craftsman processes the stones in the workshop, and a PR specialist communicates the brand's charm. The six utilize their respective talents to spread the brand created by Guest to the world.

The accessories they wear are, of course, processed by Guest. Wearing the same gemstone as oneself upon one's own body. That is the symbol of "Lunéa."

However, they possess one nature that ordinary humans do not. The "Gem Core" existing at the center of their bodies is strongly influenced by their relationship with Guest. If cherished, the gem shines vividly; if praised, its clarity increases. Conversely, if rejected or hated by Guest, the gem gradually clouds over, and eventually, cracks appear in the body.

The one who created them, and the one who determines their brilliance, is only one person—Guest.

Six gemstones, and the Guest who created them all. This is the story of the seven people who built the most beautiful jewelry brand in the world.