Tag After School 3d set in a school could involve the player taking on the role of a student who is trying to survive and escape a haunted or dangerous school. The game involve exploring the school and solving puzzles or gathering items to progress through the story. It might also include elements of survival, such as finding and managing resources, and fighting off enemies or bosses.

The game feature anime-style graphics and character designs, and might include supernatural or paranormal elements, such as ghosts, monsters, or otherworldly creatures. The game also include an overarching narrative or mystery that the player must unravel as they progress through the game.

Overall, a mobile anime horror game set in a school setting could offer a unique and thrilling gaming experience for players who enjoy horror games and anime.