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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.


Other Facts

PublishedFeb 24, 2009 to Jul 24, 2009
SerializationManga Time Kirara Forward
Last UpdatedJuly 23, 2017
Other namesHot spring planet, 温泉惑星