Ken Ryuguji, also known as Draken, is a major character in the anime and manga series Tokyo Revengers. He serves as the vice-president of the Tokyo Manji Gang and is known for his strong sense of loyalty and justice. Draken is a tall, imposing figure with a distinctive dragon tattoo on his temple, symbolizing his fearlessness and strength. Despite his tough exterior, he cares deeply for his friends and is often the voice of reason among them. Ken plays a crucial role in guiding the protagonist, Takemichi Hanagaki, throughout the series.