To combat the approaching boredom, friends decide to make a film together documenting their memories together.
Tetsuro finds a reel of film at Kaito's house. Kaito remembers it was made as a test film, so everyone could get use to being filmed. Kaito watches the reel showing Ichika being too self conscious being filmed. Remon gives her an alcoholic drink to get inspiration for the screenplay, which she gets from Ichika's uninhibited behaviour. While Ichika is sleeping off the effects. Remon pours some of the alcoholic drink for Kanna and Mio, resulting in more wild behaviour which Remon films. The test reel finishes and Kanna, Mio and Tetsuro turn up at Kaito's house with fireworks and sparklers. The friends reminiscence about old times.
Despite the combined efforts of Tetsuro, Mio, Kanna, Remon (and the van-turned-robot and support from the Men in Black), and even Rinon (with a weapon provided by Emika); and even after seeing the desired location, which Kaito is able to see due to the nanomachines he got from Ichika, the proof they were looking for—a love umbrella carved into a tree by the alien who crash-landed on the place a long time ago—is gone, and the Federation recovery team takes Ichika away. But as a result of such encounter, the memories of the aliens about the distant time when they did arrive at the place were unlocked and become part of the memory for all those involved. As the new school term enters, Kaito's sister Nanami returns from her trip to Bolivia with a gift for Ichika (a traditional incan vest); Kaito tells her that Ichika's term abroad ended and she went back home. Remon, prior to transferring back to the MIB, leaves Kaito and the others an incomplete version of the film they have made. A few years later, Kaito, Mio, Tetsuro, and Kanna have graduated, but not without completing the unfinished film. During a re-showing at the school festival, Ichika (wearing Nanami's gift) is seen appearing in it.