The male protagonist returned successfully as an undercover agent, was promoted by the police force, and became the superintendent. Due to the male protagonist's ability and experience, the superiors decided to cultivate a group of practical talents, and selected several outstanding graduates from the police academy for special training. The male protagonist served as the teacher for this training. The female protagonist was selected among the graduates with the first place in her major. The male protagonist admired the female protagonist's character very much, but the female protagonist's team awareness was relatively weak. The male protagonist conducted a detailed analysis of each person's weaknesses and gave practical lessons. The male protagonist admires the female protagonist's character very much and feels that the female protagonist is very suitable for undercover work and is decisive in her actions, so he has a crush on the female protagonist.
