Two pieces of theme music are used for the episodes: one opening theme and one ending theme. The opening theme used for the anime series is "Ashita no Kioku" (明日の記憶?) by Naozumi Takahashi and the ending theme is "Shinikirou" (蜃気楼?, / 신기루) by the South Korean rock group Loveholic. At the end of the final episode, the last few frames depict Kotaro appearing and running to Jiro, unlike the previous runs where there was no one but Jiro at the end.

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