| | | | I - The Lovers |
| | Goro | Katada | A systems engineer. Fumiko's ex boyfriend. AKA: The man. |
| | Fumiko | Kiyokawa | A smart, career-driven woman. Goro's ex girlfriend. AKA: The woman. |
| | Kazu | Tokita | Café waitress. |
| | Yaeko | Hirai | One of the café regulars. AKA: Hirai. |
| | | | Funiculi Funicula - The time-traveling café. |
| | Kei | Tokita | Nagare's wife. |
| | Nagare | Tokita | Café owner. Kei's husband. |
| | | Fusagi | A regular at the café. Kohtake's husband. Has early onset Alzheimer's. |
| | | Kohtake | Fusagi's wife. A nurse at a local hospital. |
| | | | Arm of Magic - MMORPG game that's famous around the world. Developed by Goro's uncle. |
| | | | Tip-G - The gaming company Goro's uncle ran. |
| | | | II - The Husband and Wife |
| | Kumi | Hirai | The younger sister of Yaeko Hirai. |
| | | | III - The Sisters |
| | | | Takakura - The inn on the outskirts of Sendai, meaning "The Treasury". |
| | Yasuo | | Hirai's father. |
| | Michiko | | Hirai's mother. |
| | | | IV - Mother and Child |
| | Michinori | Matsuzawa | Kei's father. |
| | Tomako | | Kei's mother. |
| | Miki | | Kei and Nagare's daughter. |