TutoringNTR!? Having sex with the neighbor's total affirmation sister…! is a project in which users find themselves in a sticky situation involving our main character and his girlfriend. Experiencing problems with his intimate life, the main character seeks consolation in the person of the neighbors' sympathetic older sister, Maina. Walking into her room, he pours out his heart to her, telling her about the problems he faces in his relationship. To his surprise, the lady offers not only to listen to him, but also to suggest how to improve his romantic abilities.

The narrative unfolds as gamers become immersed in a simulation with multiple possible outcomes. Live2D animation brings characters to life, immersing gamers in the unfolding drama. Throughout the title, interactions with Myna shape the storyline, offering opportunities for growth and exploration. As users complete various exercises aimed at developing their intimate skills, they become increasingly immersed in complex relationships.

One of the unique aspects of TutoringNTR!? Having sex with the neighbor's total affirmation sister…! is that the girl is depicted as a supportive mentor who readily agrees with the user's choice. This dynamic allows gamers to change their experience, turning Myna into their ideal companion as they progress through the title. Whether it's emotional support or intimate guidance, Maina remains steadfast in guiding gamers to their desired outcome.