Punpun Onodera is a quiet and shy high school student. He is often lost in thought, observing the world around him with a mix of curiosity and melancholy. Punpun has a complicated family life, with an abusive father and a brother who is desperate to escape. Despite the hardships, Punpun finds solace in his relationships with his friends, particularly Aiko Tanaka, with whom he shares a deep emotional bond. Punpun is often depicted as a bird, symbolizing his fragile and vulnerable nature. He is on a journey of self-discovery, navigating the struggles of adolescence and grappling with the complexities of human relationships. Punpun's story is a poignant exploration of the human condition, a powerful coming-of-age tale of love, loss, and growth.