Synopsis

With the rigorous sea training imminent, initial drills commence in the pool. There, they patrol three submerged air stations, struggling to maintain breath. It is during this exercise that Hasebe Tatsuya (Watanabe Aoto) succumbs to breathlessness, losing consciousness. Shirakawa Tomoki (Maeda Kentaro), witnessing this, is seized by a wave of intense fear. Having grown up in an orphanage, Shirakawa had aspired to be a pararescue jumper, driven by a desire to become a hero for his fellow trainees