This is not a fanfiction. It's a story about everyone in a different world firmly adhering to their own beliefs. ... This is a turbulent era in which the gods are on the verge of collapse. Sages cooperate with the Wolf King, the godslayer, in order to obtain the power sufficient to contend with the gods. Humans are willing to sacrifice everything they have. After all, power always comes at a price. Those with weak wills lose their sanity, and only a few resolute people can hold fast to their beliefs. Daminen, a student from an academy, accidentally travels to this world. Since then, his fate has been closely intertwined with this thrilling struggle. In the life-and-death battle against the followers of the gods, can they break through the thick fog and finally play the song of victory?