Ep. 4: The trio prepares for their journey after leaving Odaiba, but Mirai and Yuuki get into trouble.

4

After departing from Odaiba, the group locates a spot to rest and gather necessary supplies for their upcoming long trek. Following a discussion among the members, Mirai and Yuuki separate from Mari. The pair wanders off and subsequently finds themselves in a dangerous situation. This incident highlights the risks they face as they continue their journey, forcing them to deal with the consequences of their actions while separated from the rest of the group.