Tokyo Revengers explores the concept of destiny and free will through its protagonist, Takemichi Hanagaki, who finds himself able to time travel to his past. This ability allows him to alter the course of events and change his destiny, highlighting the idea that individuals have the power to make choices that can shape their future. However, the series also delves into the idea of fate and how certain events seem predetermined, challenging the notion of complete free will. Ultimately, Tokyo Revengers presents a complex narrative that interweaves themes of destiny and free will to provide a thought-provoking exploration of these concepts.