Who she is: Mariko Yashida
Her power: Unless extreme wealth is considered a superpower, Mariko does not have any superhuman abilities.
Her story: Mariko’s biological relatives are horrible. She has a loving, protective adopted sister in Yukio, but The Wolverine reveals that both Mariko’s father and grandfather are garbage. Mariko tries to kill herself when her grandfather, Ichirō Yashida, tells her that he’s leaving his massive fortune to her when he dies, which is an extremely manipulative move considering Ichirō is going to fake his death so he can steal Wolverine’s healing factor. Ichirō puts his cherished granddaughter in incredible danger when he fakes his death, and her own father and fiancé try to have her killed because of the inheritance. Lucky for Mariko, Logan is dedicated to saving her life, starting with the suicide attempt and continuing when gangsters try to capture Mariko at her grandfather’s funeral. Mariko is turned on by this heroism, and she begins a romantic relationship with Logan that helps heal the emotional wounds of Jean Grey’s death at his hands. Mariko is eventually captured, and Wolverine and Yukio team up to rescue her, but Mariko ends up doing the saving when she throws one of Wolverine’s detached claws at her grandfather’s head, killing the man before he can steal Wolverine’s healing factor. She becomes the wealthiest woman in Japan after Ichirō’s death and is last seen bidding her lover and sister farewell when they head back overseas.
Played by: Tao Okamoto
Currently, Mariko Yashida is: Her current status is unknown after the timeline changes of X-Men: Days Of Future Past, but she’s probably a young girl in Japan, struggling to make friends in the years before meeting the homeless orphan who will become her adopted sister.
Where will we see her next? There are no plans for Mariko to appear in any future X-Men films. Logan seemed like a possibility, but it just wasn’t meant to be.