Mirai Tsukumo (manga)

Mirai Tsukumo is a character appearing in the Yu-Gi-Oh! ZEXAL manga. She is the husband of Kazuma Tsukumo and the mother of Yuma Tsukumo and  Akari Tsukumo.

Manga Biography
Mirai is an adventurer together with her husband, Kazuma Tsukumo. They gave Yuma his pendant, and taught him the "Kattobingu" spirit, before disappearing.[5] Yuma claimed he could always do "Kattobingu", no matter how much people laughed, because he always had the pendant with him, and he felt like his parents were always cheering him up.