The characters in "Tokyo Revengers" navigate the complexities of loyalty and betrayal through their personal relationships and shifting alliances. Each character grapples with conflicting loyalties to their friends, family, and personal goals, leading to moments of betrayal and difficult choices. The series explores how characters reconcile their feelings of loyalty with the harsh realities of their environment, often facing moral dilemmas and consequences for their actions. Ultimately, the characters' journeys in the series showcase the nuanced ways in which loyalty and betrayal can impact individuals and their relationships.