In order to get along with NIN, DAI has to behave more ladylike. She suggests playing chess and capturing butterflies with NIN. However, she feels boring and kills the butterflies instead. Therefore, NIN suggests to her to play the musical instrument whilst, he practices the sword. Again, DAI has no talent in musical instrument and; NIN knows nothing about sword. Just when they return home, they meet BILL who discovers a woman’s dead body and a suspect. BILL tries to capture the suspect; meanwhile, CHI passes by and helps. The suspect named MAO KEI LUN is under arrested at last.