Tetsu Sabi to 1000 Carat

Individuals known as "Jewel-sama" are born with jewels in their eyes and possess unique abilities. They reside in a grand estate called the "Jewel Box" and are responsible for fulfilling people's wishes. Yuni, a new arrival with iron ore in her eyes, struggles to live up to expectations as a "Master Jewel." She meets Alecrea, a skilled jeweler with a reputation for destroying jewels, who is investigating hidden aspects of the Jewel Box. Yuni assists Alecrea in uncovering the truth, encountering other jewel masters along the way. As she becomes entangled in his quest, she may hold the key to changing the world.