Blue is the main protagonist of the manga series Cyber Blue. In a dystopian future, he is a rebellious teenager who becomes a cybernetic warrior after a tragic incident. Blue is known for his strong sense of justice and determination to fight against oppressive forces that threaten the freedom and safety of the people. Through his journey, he encounters various allies and enemies, developing his skills and understanding of the harsh world around him. His character embodies resilience and the struggle for personal and communal liberation.