Shuichi Azuma is a middle school student who has played baseball his entire life alongside his close friend Kenta Saijo. His decision to quit the baseball team sparks significant conflict, culminating in a physical altercation on the eve of their school's cultural festival. This abrupt choice stems from an inability to clearly articulate his motivations, leaving their friendship strained.

Following the argument, Azuma isolates himself emotionally. As a typhoon approaches and students shelter at school, he observes a mysterious red-eyed girl named Noruda standing near an electrical tower in the storm. Witnessing her fall after a lightning strike, Azuma impulsively rushes into the dangerous weather to rescue her. His immediate compulsion to assist Noruda persists even after discovering her connection to the supernatural typhoon.

This encounter with Noruda forces Azuma to confront the consequences of his communication breakdown with Saijo. As the supernatural storm intensifies, he realizes he cannot resolve the situation alone and must reconcile with Saijo to effectively help Noruda. Their collaboration during the crisis proves instrumental in overcoming the supernatural threat, allowing Azuma to begin repairing their fractured friendship through shared action.

Azuma exhibits traits of introspection and impulsiveness. His initial withdrawal after quitting baseball contrasts with his decisive rescue of Noruda. His actions reflect a developing sense of purpose beyond sports. The resolution of the typhoon event facilitates a tentative reconciliation.