In "Tokyo Revengers," the characters deal with themes of loss and redemption in various ways. Characters like Takemichi work towards redeeming themselves by trying to change the past and prevent tragic events from happening. Others, such as Mikey and Draken, are also shown to struggle with their own losses and seek redemption through their actions and relationships with others. Ultimately, the characters in the series navigate these complex themes by facing their pasts, making difficult choices, and finding ways to grow and change for the better.