I Won't Forget the Magical Girl(2011)

I Won't Forget the Magical Girl is a Japanese film following Yuya Kitaoka, a high school student whose life changes when his mother introduces him to Mirai, a younger sister he never knew existed. Mirai once wielded magical powers but has lost them, leaving her isolated and struggling to adjust. As the two navigate their unexpected sibling relationship, Yuya finds himself drawn into Mirai's world. What begins as confusion and awkwardness evolves into something deeper as they bond over her mysterious past and present circumstances. The film blends coming-of-age drama with magical-realism elements, exploring themes of family, loss, and connection. Tender and contemplative, it examines how two strangers become family and what it means to carry the weight of forgotten power.