Hi Deadxak! Late into the game there are very strong language sexual conversations between the characters after building a relationship with Loona. We’ve added the various adult marks due to itch.io’s requirements as our game contains multiple different sexual topics.
Edit: We've listened to multiple feedback and come to agree with you all - the game does not fall under the assumed "adult" (i.e. x-rated) tag, so we've now removed it!