Mutiny!! is an adult-oriented game and features mature content
Source: The Developer Website.
Mutiny!! follows the story of Grace Barnet, a prostitute who finds out she’s been made captain of (The Bleak Heart) The Mutiny!! a pirate inter-planar skyship after the Navy come looking for it’s original captain (pictured above). Forced to leave in a hurry lest she be captured in the previous captain’s place, she then discovers the enormous debt she’s been shackled to after being made captain. Mutiny!! is a fun, sexy, and light-hearted adventure story, where Grace must learn to be captain, and her crew of misfits must learn to be treasure hunters if she’s to pay down her new sizable debt.
Mutiny!! is an unconventional visual novel that forgoes the common route into character route trappings, the central focus of Mutiny!! is on it’s main adventure story, with character specific stories to come later as bonus route DLC. These DLCs are small character focused escapades but are not meant to be the meat & potatoes of what is Mutiny!!.
Source: The Developer Blog.