There are many reasons why someone might feel drawn to return to a past experience or place. Perhaps they:
Boku's childhood crush and his sister's friend. In his original timeline, she marries someone else, but in the new timeline, she is his primary romantic interest.
The rumored (often called the "Sakura no Ki no Shita" ending) involves Kaito realizing he cannot fix the past to create a perfect future. Instead, he uses his second chance to help everyone survive the pain, not avoid it. He confesses to the embezzlement himself, takes the fall, but leaves evidence to clear his name years later. It is bittersweet, but mature—the mark of a true "Yarinaoshi."
If your Mental Age gets too high compared to your physical actions, NPCs might become suspicious of your "creepy" or overly mature behavior, leading to a "Suspicion Meter" game over. 4. Childhood Territory Management