Every person, from the moment they're born, sketches out ideas and goals in their minds like intricate lines. These ideas evolve over time. Those who value their mental sketches and follow them end up with beautiful patterns on their bodies when they pass away—a reflection of their lived lives. However, for those who don't pursue their goals, no designs grace their bodies.
The Fairy of Regret arrives right after the last breath, reminding the dying person of their unfulfilled aspirations. It prompts them to reflect on the potential future they could have had if they had followed the lines of their thoughts. This celestial being shows up exactly when time is almost out—a moment of regret.
In that moment, it's the moment of regret, precisely when no time is left.