Something's Wrong with Sunny Day Jack is an NSFW horror Dating Sim Visual Novel previously made in Tyranobuilder and now moving to NaniNovel, in which the player character dates the titular Sunny Day Jack.

One day while out at a thrift store, you stumble upon a tape that read "'84 - INCIDENT" and quickly bought it, you then decided to watch it at home but you out, not remembering anything. But at least now you have a new roommate, although only you can see him. And he seems just a bit too interested in you...