Having gone through a long term of training, LAI CHUN's capability is finally recognized by TSUN-KIN and her other co-workers. LAI CHUN has also become more and more optimistic in the SDU, getting along well with others. Having seen this, CHI-NGAI and TSUN-KIN both recall their own experiences when they first became SDU members. CHI-NGAI asks TSUN-KIN whether the latter has any improvement in his relationship with YEUK-LING. In response to CHI-NGAI's query, TSUN-KIN reveals that his family members have already known that YEUK-LING was the female patient who he mistakenly shot during the gun battle some years ago. CHI-NGAI suggests that TSUN-KIN should reveal the truth to YEUK-LING as soon as possible so as to avoid bringing more misunderstanding.… ...