Gaen Izuko agrees to help Koyomi if he and Suruga help her with a task once his “case is closed.” She tells him the darkness has come to punish Mayoi for lying about still being around and being a “ghost of a ghost”, and not performing her duty an oddity to make people lost. Because Koyomi and Ononoki are lost, the darkness doesn’t attack, but they can’t remain lost forever. Content with the time she got to spend with Koyomi, she decides to pass away willingly, after confessing to loving him. Four months later Koyomi recounts his tale to Ougi, who tells him of her job: which is identical to that of the darkness.
Excuse us, there’s something in our eyes! In all seriousness, that was one sudden, poignant, moving close to Koyomi’s sometimes-inappropriate, always complex but ultimately warm relationship with Hachikuji Matoi. We didn’t really expect something like this, even though the events involving the darkness definitely hinted that Matoi was its likely target. We like how Izuko’s explanations tie Shinobu’s story with Mayoi’s present situation, for while they couldn’t be more different as oddities go, both of them were visited by the darkness for the same reason: because they were “lying”—or merely failing to address misunderstandings—about their existence.
The power of Mayoi’s farewell is based in the rich history between her and Koyomi. After Senjougahara, she was the first oddity he came across, establishing the general formula of the initial Suruga, Nadeko, and Tsubasa arcs that followed. For those who have watched this series in order, we first met Mayoi nearly four years ago (seven for the novel-readers). Koyomi even tried to bring her back to life by saving her in the past, almost destroying the present in the process. Turns out his bittersweet goodbye to that alternate-timeline grown Mayoi presaged the even more bittersweet goodbye here. Also, Mayoi’s seiyu Kato Emiri provides a moving yet understated performance.
The episode also brought into focus another corner of the world of oddities: the cold, logical order punishing any who stray from their appointed roles. The epilogue also suggested to us that the amorphous darkness also has corporeal form in Oshino Ougi, which would explain not only why she looks so weird, but also her penchant for composing life lessons from the observations of others. We’ll miss Mayoi, as Koyomi will, but we understand why she had to go, and she did so the best way she could. Koyomi wanted to be her hero, but this time his foe was utterly beyond him, and couldn’t even properly be called a foe. It was simply an inviolable force of nature, righting wrongs and ending things that must end.
Rating: 9 (Superior)