1x9 - Hirayasumi

Unable to find any summer fun, Natsumi spends her first college summer in boredom. Feeling lonely while his wife stays with family, Hideki brings fireworks and some watermelon to party with Hiroto and Natsumi. While Hiroto makes a trip to the store, Hideki shows Natsumi a movie he filmed with Hiroto, which became a hit at their high school's culture festival...