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About this Title
A package from Hell, along with a mysterious stamp album, opens up a whole new world. Please sign for your package and embark on a thrilling journey. Mailmen come and go while stamps last forever. (Source: Webnovel)
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AniList 53
StudioUnknown
Sourcesync:anilist
Episodes1 eps
Aired2019
Rating53 AniList
AdventureHorrorSupernatural