"Sakuracircle Gaki ni Modotte Yarinaoshi 2021" follows the story of a high school student who discovers a way to travel back in time. The protagonist, having failed to achieve their goals in their previous life, sees this opportunity as a chance for redemption. They find themselves transported back to their middle school years, where they aim to redo their life, make amends for past mistakes, and alter the course of their future.