The male protagonist is an ordinary semi-otaku who lives a monotonous life of going to work and going home to work every day. He doesn't know what the meaning of life is, and he always wants to find his true heart.
By chance, he traveled to another parallel space, where the Anshi Rebellion was taking place. There, he was still so ordinary, but he met different people, different things, and different environments.
There, can he find his true heart?
