Tokyo Revengers explores the theme of justice and its relationship to revenge through its protagonist, Takemichi. The series delves into the idea of seeking justice through unconventional means, including time-traveling to change the past and prevent future tragedies. It also raises questions about whether seeking revenge ultimately leads to a sense of justice or perpetuates a cycle of violence. Additionally, the show examines how personal vendettas can intersect with larger societal issues, highlighting the complexities of seeking justice in a morally grey world.