Centers on a boy named Osamu who receives an umbrella as a gift from Sayu, but it goes missing. That umbrella transforms into a girl who goes gallivanting around town on a rainy day.
| Actor | Role |
|---|---|
 Haruka FukuharaSayu (voice) | Sayu (voice) |
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Centers on a boy named Osamu who receives an umbrella as a gift from Sayu, but it goes missing. That umbrella transforms into a girl who goes gallivanting around town on a rainy day.
| Actor | Role |
|---|---|
| Haruka FukuharaSayu (voice) | Sayu (voice) |