SECRET Fan Crush is a simulation game developed by Day7 for Android devices. It is a free-to-play game that falls under the category of simulation games and subcategory of K-Pop fandom. The game revolves around the life of a hardcore K-Pop fan who accidentally reveals her secret life as a fangirl to the world.

In SECRET Fan Crush, the player takes on the role of a K-Pop fan who meets her favorite star and becomes a trainee to debut as an idol. The game features various characters, including childhood friends, piano prodigies, student presidents, handsome tutors, and more. The player gets to experience the ups and downs of being a K-Pop fan and trainee, making choices that determine the outcome of the game.

It is worth noting that the game requires certain permissions, including in-app purchases, ID, contacts, phone, Wi-Fi status, photos/media/files, storage space, and device ID and/or call info. The game also requires additional data download on the first play after installation, which requires a stable internet connection.

Overall, SECRET Fan Crush is an entertaining game for K-Pop fans who want to experience the life of a fangirl. The game's graphics, sound effects, and storyline are impressive, making it a must-try for simulation game enthusiasts.