Takemichi's time-traveling ability in "Tokyo Revengers" greatly impacts his relationships with others in various ways. By going back in time, Takemichi is able to alter events and prevent certain tragedies from happening, which allows him to strengthen his bonds with others and change the course of their lives. However, his time-traveling also creates challenges as he struggles to keep his dual identities and experiences separate, leading to conflicts and misunderstandings with those around him. Ultimately, Takemichi's ability to time-travel brings both positive and negative consequences to his relationships with others in the series.