Her Fallen is a visual novel, based on the netori genre. The story develops in the future, where monsters out of portals appeared out of nowhere and destroy the cities. A group of scientist develop a serum that makes some humans capable of fighting those monsters. And, due to their importance, some governments started to denominate those new citizens as "special", giving them more ways to benefit of the state.

[Name] is a new student (and special citizen) in the Turon Academy, when he enters his new classroom, he finds himself confronted by a boy and a girl.

You can do good or bad things to the people close to you. It's your choice!​