Hailing from an ocean planet, Lumiale serves as the Guardian of Water in the Shinchou Universe. Standing at 183 centimeters (6 feet) tall and weighing 67 kilograms (147 pounds and 11 ounces), he bears silvery blue hair and deep sea blue eyes. Born on May 3rd under the Taurus sign with blood type A, he comes from a commoner lineage where his father worked as an artist. His family includes his parents, two older brothers, and a younger sister.

Lumiale’s Sacrea channels medical treatment and healing protection. His journey commenced when his Messenger arrived at age sixteen, culminating in his official appointment as Guardian of Water at seventeen. He possesses a delicate disposition and expresses strong aversion to conflict, harmonizing with his healing-focused abilities.

His personal pursuits encompass playing the harp, cultivating herbs, and watercolor painting—especially landscapes. He also collects music boxes and enjoys visiting the outside world. Among companions, Lumiale considers Clavis his closest ally while regarding Oscar as his least compatible relationship.

Lumiale favors herb tea, aromatic herb salad, and asparagus pasta, yet dislikes foie gras, turkey, and whole cooked fish. The scent of rain appeals to him, and he cherishes his violin as a prized possession. He admires small tropical fish and envisions his ideal partner as a gentle, delicate woman with an appreciation for music.