: After witnessing Banri’s raw, powerful drumming in a battle at the Submariner café, the group is impressed by his talent. Ren's persistence and Banri’s eventual honesty lead to him joining as the final member.
: At the end of the episode, the group visits Banri's family farm, where they view the stars. Inspired by the Argo Navis constellation and Wataru's ship motif, they officially name themselves Argonavis . Character Dynamics
The episode focuses on the search for a drummer to complete the group.