The episode serves as a character study while setting up future dynamics:
While the first three episodes centered on Lily and the team's attempt to survive their first mission, Episode 4 backtracks 20 days to reveal how integrated into the group. Known for her signature white hair and "misfortune" specialty, Erna initially felt like an outsider who arrived late to the Heat Haze Palace. Spy Kyoushitsu - Episode 4
: Erna struggles with the idea of trusting other spies, fearing that her misfortune will eventually cause her teammates to abandon her. The episode serves as a character study while