Ryuko Tatsuma, the Pro Hero Ryukyu, joined the World Heroes Association's coordinated global strikes against the terrorist group Humarise. She spearheaded a team during simultaneous international raids, assigned specifically to the Paris operation. Her unit comprised her work-study trainees: Nejire Hado, Ochaco Uraraka, and Tsuyu Asui.
In Paris, Ryukyu and her team confronted the local Humarise cell. Their critical mission objective focused on locating and neutralizing a deployed Trigger Bomb containing a lethal Quirk-spiraling toxin. During this effort, Uraraka and Asui executed a combined maneuver known as Meteor Fafrotskies. Ryukyu provided direct oversight and support throughout the operation as their supervising Pro Hero.
Ryukyu's actions in Paris demonstrated her protective leadership, particularly towards those under her charge. Her team's contribution formed part of the worldwide response that successfully neutralized Humarise's remaining Trigger Bombs, preventing their activation and eliminating the global threat.