Ochaco Uraraka participates in the World Heroes Association's global anti-terrorism operation against Humarise, which plans to eradicate Quirk users through worldwide Trigger Bomb detonations. She deploys to Paris, France, under professional hero Ryukyu's leadership alongside teammates Tsuyu Asui and Nejire Hado.

During the mission, Uraraka focuses on rescue and support operations. Her Zero Gravity Quirk—nullifying gravity's effects on touched objects or people via her fingertips—facilitates civilian evacuations from danger zones and stabilization of hazardous situations caused by Humarise's attacks. This role aligns with her established expertise in rescue-oriented heroism from training.

Uraraka's Paris mission contributes to the coordinated global effort to locate and disarm Trigger Bombs before detonation. While the film centers on Izuku Midoriya, Katsuki Bakugo, and Shoto Todoroki in Otheon, her involvement underscores the widespread hero mobilization against Humarise.