Synopsis
In a certain star system, there is a small planet called the Onsen Planet. The entire surface is covered in hot springs, and the ones who manage them are the 4 Santa Monica siblings.
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Editions
+ New edition- r4 source · import Imported from AniList +1 field 4 weeks ago
- r3 source · import Imported from AniList +1 field Oct 2026
- r2 source · import Imported from AniList +1 field Oct 2026
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