"Wave" is a manga series that explores themes of survival, human resilience, and the complexities of interpersonal relationships in the face of disaster. The narrative centers around a catastrophic tsunami that strikes a coastal town, leaving its inhabitants to grapple with the immediate aftermath and the long-term consequences of the tragedy. The story unfolds through the perspectives of several characters, each dealing with their own struggles and losses.

The protagonist, a young man named Hiroki, is introduced as a high school student with a passion for surfing. His life takes a dramatic turn when the tsunami hits, separating him from his family and friends. As he navigates the devastated landscape, Hiroki encounters other survivors, including a young woman named Aoi, who is searching for her missing brother. Together, they form a bond and work to overcome the challenges posed by the disaster.

Another central character is Takuya, Hiroki's best friend, who initially survives the tsunami but becomes embroiled in a moral dilemma when he is forced to make difficult decisions to ensure his own survival. His actions create tension and conflict within the group, highlighting the ethical complexities that arise in extreme situations.

The narrative also delves into the lives of secondary characters, such as elderly residents who reflect on their pasts and the younger generation's struggle to find hope in a seemingly hopeless situation. The manga portrays the psychological toll of the disaster, depicting characters who experience guilt, despair, and the gradual process of healing.

As the story progresses, the survivors face not only the physical challenges of rebuilding their lives but also the emotional scars left by the tsunami. The manga examines how tragedy can bring people together while also exposing the fragility of human connections. Through its portrayal of loss, resilience, and the enduring human spirit, "Wave" offers a poignant exploration of the impact of natural disasters on individuals and communities.