The official genre fields

The Steam listing supplies Adventure, RPG and Simulation categories. These are product metadata, not a ranking of which system dominates the experience. The same game can combine exploration, training and story without changing the listed categories. For the documented survival systems, see Gameplay Guide.

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How survival and story fit

The official description includes managing food and water, crafting, shelter development and an island escape objective. It also describes Mitsuki’s role and a relationship that changes through shared hardship. This supports a survival-and-story explanation, but it does not establish a complete branching-story map or replace official genre labels with community tags. For the narrative part of the game, see Visual Novel Overview.