There’s this song. It’s a song Mayuri sang to a young Kagari in the future, just when she finally became her legal mother. When the Kagari of the present hears the Mayuri of the present singing it, she loses consciousness. It’s not that Mayuri’s singing is just that bad—it’s quite lovely—but rather that Kagari’s brain is suddenly getting hit by some pretty profound aural stimuli.
But when Kagari makes the connection between the song and her fainting spell, the question becomes where did Mayuri learn the song? That takes us on a rather wild ride: She heard it from Suzuha, who heard it from Yuki, who heard it from a woman in her baking class who turns out to be…Rintarou’s mother. Yet Rintarou himself, apparently the source, can’t remember singing it. To quote Alice, “curiouser and curiouser.”
Rintarou’s mom said he used to sing it to Mayuri to cheer her up when she was in her “reaching up at the sky at a cemetery” part of her life. They visit Mayuri’s grandma’s grave to try to spark Rintarou’s memory, but get caught in the rain.
While seeking shelter by a shop window, Kagari hears “The Magic Flute” (K620) playing on the radio and goes into a kind of trance, remembering when she once walked along that same street in her bare feet and pajamas. She’s almost hit by a truck (of course), but Rintarou makes a diving save.
While she’s out this time, something happens. Kagari runs to her mother’s arms; a blurry figure that she discovers is Shiina Mayuri. Waking up in a hospital room, she sees Mayuri by her bedside and immediately recognizes her as her one and only mommy.
Mayuri protests that she’s not a mommy, but, well, she just is. Or rather, she will be…just as Suzu is Daru’s daughter. Rintarou nods assent, and Mayuri goes with it, providing Kagari with the affection she needs. The plain credits roll as a very lovely rendition of the song is sung, at it seems things will end on a pleasant note.
Of course, this is the twist-loving White Fox we’re talking about, so after the credits we find ourselves on a train platform where that same barefoot pajama’d Kagari is singing the song, and a teenaged boy overhears it—a teenaged boy with the same color hair and eyes as Rintarou.
I’ll admit, I was a little confused by this scene, but maybe that was the point. Here is Kagari, who will presumably be adopted by Mayuri in the future, in Rintarou’s past, singing the song he’ll sing to Mayuri to cheer her up. Seems an awful lot like a causal loop to me.
That would be fine, except there’s a creepy white van parked near the platform, confirming that “Runaway K-6205” has been found. Are we watching past events here, or is Kagari in danger no matter where or when she is? Will the next episode continue in this world line, with “Macho Psychologist” Rintarou helping Kagari out? I honestly have no idea, but I can’t wait to find out.