The club is putting the finishing touches on their photography, art, and magic exhibition (I love how the principal asks Kohaku to define “event”) as the day of the festival approaches, but the impending joy of sharing their gifts with classmates, friends and family is suddenly, jarringly preempted by a new and bizarre development: Hitomi is starting to experience “time gaps” as a result of the future Kohaku’s magic wearing off.
At first, Asagi thinks she was just mistaken in not noticing Hitomi in the room into which she’d just walked. But it only takes us one look from Kohaku to realize that something very wrong is occurring, and it can spiral out of control fast if not dealt with immediately. All of a sudden, all of the interpersonal problems that have occurred among the club so far pale in comparison to the very real threat of Hitomi permanently vanishing into oblivion.
Kohaku contacts a scholar and expert in time magic, as well as a fellow mage at a bookstore, to confirm her suspicions: whatever time magic she used sixty years in the future, it must be used again to return Hitomi to her proper place in the timeline, lest the universe excise her by force. For as much as she’s fit in and become comfortable, the fact is she is the kind of space-time abnormality the universe abhors.
There is no easy way to break this to Hitomi, and as a result of the suddenness and finality of the news (You gotta go, ASAP, The End) she’s just not sure how to process it, what to do or what to say. It’s sobering to know there doesn’t seem to be any time magic Kohaku of the present could perform on Hitomi to stabilize her presence in the past.
The next day’s weather reflects Kokahu and Hitomi’s moods, but the rain reminds Hitomi of the night Yuito offered her an umbrella, and she takes comfort in the belief it’s a memory she’ll always recall whenever it rains. Unfortunately, she also disappears right before Yuito’s eyes, and her umbrella depressingly falls to the ground.
When Yuito reports the incident to the others, Kohaku comes clean about the extent of the danger Hitomi’s in. She and Yuito find Hitomi where she vanished, sleeping in a bed of flowers in a disturbingly funereal scene that shakes Kohaku to the core. Back home, she sits vigil for her granddaughter, but her own grandmother tells her to get some rest herself. After all, Kohaku’s future self tacitly trusted her past self to pull off the time magic that will bring Hitomi back…but she won’t be able to do it if she’s exhausted.
Hitomi wakes up the next morning literally tied to Kohaku with a string, and ends up staying in for the day. Still, she gets up and leaves the house and ends up finding Kohaku on the beach with the others, gathering star sand for use in the spell that will return her to her time. A lot more sand than usual is washed up due to the typhoon that just blew by.
While no one is happy about the prospect of Hitomi having to go, and so soon (especially Asagi and Yuito), when Kohaku asks for help, they help, for Hitomi’s sake. They collect enough sand and she gets it to her acquaintance, who assures her they’ll have it ready to go by tomorrow.
Meanwhile, back at home, Hitomi finally finds a way to reach out to Yuito from across the town: a magical homing paper airplane, which taps on his window. He flashes his lights on and off, as does Hitomi. When her second airplane seems to go off course, she jumps into her shoes and chases after it.
Turns out it’s still en route to Yuito; he’s just not at home anymore: he’s racing towards her just as she’s racing towards him, and they meet in the middle, under the almost-new moon, and embrace. It took the urgency of impending oblivion for it to happen, but the two have finally come together and are on the same wavelength. It’s just too bad the time they’ll have after reaching this state looks to be all too painfully short…