Mao no Atelier Kiseki no Akusesari no Tsukurikata

The Demon King Yami, exhausted by the prolonged war, begs the Hero Lux, "Kill me." But the Hero couldn't bring himself to kill the lonely girl. —Yami fell in love for the first time.

Lux faked the Demon King's death, ending the war. However, their quiet life together didn't last long, as Lux died from an illness. In her grief, Yami delivered his remains to Lux's hometown, where she found his younger brother, Lei, who bore a striking resemblance to him.

With nowhere else to go, Yami hides her true identity and starts living in the accessory workshop run by Lei. She eventually realizes that the Demon King's magic causes strange miracles for the owners of the accessories—...

A story of rejuvenation spun in a world without the Hero.