Ai was leading her usual life until she crossed paths with a man who seemed to be struggling financially. The man was unable to afford his meal, which prompted Ai to offer to take him out for lunch. However, things took an unexpected turn when she invited him back to her place to stay for the night. The man left early the next morning, and everything seemed fine. But now, after some time has passed, Ai is starting to wonder if she might have seen the man again.