Waifus is an adult game set in a dystopian, anime-inspired world where you play as an immigration officer in charge of screening various characters at the border. Inspired by games like Papers, Please, this game adds adult themes and interactions as you face various choices that impact character relationships, story progression, and gameplay outcomes. Your decisions can lead to different paths, and the game features hundreds of character cards, giving players a mix of decision-based mechanics and visual novel elements.