We Made Friends With Fireflies Episode 6

As everyone is cleaning up the school on the last day of the semester, Natsumi and Hotaru end up weeding and watering the garden together. Natsumi realizes she's never been alone with Hotaru before and tries to come up with things to talk about... Then summer vacation begins and the kids start to work on their summer homework, but quickly grow bored. Hotaru then tells everyone her parents are going to buy some fireworks...