Mr. Liu and Ms. Wang are neighbors in the same apartment building, and they occasionally exchange pleasantries. One day, Mr. Liu asked Miss Wang to use the toilet because he was in urgent need of urination. He unexpectedly discovered Miss Wang's true occupation. Mr. Liu shyly asked Miss Wang to confirm the matter. Miss Wang generously admitted that she was an AV actress... and then Miss Wang led the way. Mr. Liu experienced the most comfortable experience in his life.