An adult Otome game, featuring a detective story narrative and romance. Love Ritual will put you in the shoes of a woman named Riilai, a professional scientist with extensive knowledge of occult magic. In a big case, the police reach out to her family in order to investigate whether or not a ritual took place at the crime scene. Riilai goes to the city to assist in the investigation as an expert in the hopes of getting a lead on the suspect.​