On September 28, 2026
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Release dates — Keys to the Heart
Theatrical, digital and physical windows by country
| Date | Country | Type | Cert |
|---|---|---|---|
| Jan 17, 2018 | South Korea | Theatrical | 12 |
| Apr 5, 2018 | Hong Kong SAR China | Theatrical | — |
| Oct 31, 2018 | France | Theatrical | — |
| Dec 28, 2018 | Japan | Digital | G |
