Black Rock Shooter (2012)

Mato Kuroi's first day of junior high takes an unexpected turn when she encounters the introverted Yomi Takanashi. Eager to befriend her, Mato initiates conversation, initially met with hesitation. Their connection deepens when Yomi notices a blue bird charm on Mato's phone, sparking a shared interest that solidifies their friendship. Meanwhile, in a parallel universe, Mato transforms into Black★Rock Shooter and Yomi into Dead Master. As their lives intertwine, events in one realm begin to impact the other, leading the girls to unknowingly navigate the complexities of destiny.