Koyomi Hidaka and Shiori Sato meet at his father’s research center and begin to fall in love, but so do their parents, who eventually marry. To avoid becoming stepsiblings, they decide to run away to a parallel universe. Traveling between dimensions is common in their world, but not without repercussions. Does a universe exist for the young couple, and what will it cost them to find it?
| Actor | Role |
|---|---|
 Hio MiyazawaKoyomi Hidaka (voice) | Koyomi Hidaka (voice) |
 Aju MakitaShiori Satou (voice) | Shiori Satou (voice) |
 Ai HashimotoKazune Takigawa (voice) | Kazune Takigawa (voice) |
 Kimiko YoKazune Takigawa (old woman) (voice) | Kazune Takigawa (old woman) (voice) |
 Maki MizunoItoko Satou (voice) | Itoko Satou (voice) |
 Tokuma NishiokaKoyomi Takasaki (old man) (voice) | Koyomi Takasaki (old man) (voice) |