Tsuyoshi finds himself caught in an unexpected predicament when a mysterious time machine lands in his life, offering him the chance to revisit crucial moments from his past. Rather than simply observing, he discovers he can actually change what happened, and suddenly the weight of his choices becomes real in ways he never anticipated. What starts as a playful opportunity to fix old mistakes spirals into something far more complicated, as each alteration ripples through his relationships in surprising directions. The film balances humor with genuine emotional stakes, finding comedy in the absurdity of time travel while grounding itself in the messy reality of how our decisions shape who we are and how others see us. Tsuyoshi learns that trying to engineer a perfect past doesn't guarantee a better present, and sometimes the moments we regret most are the ones that matter. It's a story about accepting yourself, understanding that growth comes from moving forward rather than backward, and recognizing that the people around you matter more than getting everything right.