Heart Protector is a game that falls under the category of simulation games. Unlike ordinary games, it is a text-based game that progresses through the story, making it a visual novel. It is important to note this before playing.

The game revolves around a protagonist who wakes up in a hospital, greeted by a man claiming to be their guardian. As the days repeat, the protagonist begins to question their situation and the identity of the people around them. The storyline is intriguing and keeps players engaged.

The game features beautiful illustrations by 31, accompanied by a captivating soundtrack composed by FROM.EDEN. The user interface, designed by Chibinyu from the Department of Game at Sangmyung University, is user-friendly and enhances the overall experience.

Heart Protector is a free app developed by Class Happiness. For bug inquiries or any other questions, users can contact the developer at

Please note that this app is the main version and not the prologue version. The decision to release the app for free, which was originally planned as a paid version, was explained in a post after the ending of the game.

Heart Protector offers an immersive visual novel experience with an intriguing storyline, stunning illustrations, and a captivating soundtrack. Dive into the world of Heart Protector and uncover the mysteries that lie within.