We Made Friends With Fireflies.Natsumi tries to come up with some conversation topics while alone with Hotaru, only to find her go off about an anime series that she herself hasn't watched, but she soon comes across something of interest to Hotaru. The next day, Natsumi takes Hotaru and Renge bug hunting, where she shows them a cicada nymph. Later, Hotaru invites the girls to view some fireworks with them, only to find the store has run out, leaving only a single underwhelming one. As Hotaru feels down about disappointing everyone, Kazuho takes everyone to a special place filled with fireflies.