A new era begins in a devastated world gripped by nuclear winter. Humans are no longer in control of the world, and crises emerged one after another. As mankind tried to rebuild order, the protagonist Ren Xiaosu stepped up with his positive energy, and in the process changed the world.

The story is about Yun Che, the main character, who is cornered by his enemies at Cloud's End Cliff on the Azure Cloud Continent.

Masamune, a third-year middle school student, lives in a town where all the exits have been sealed off due to a sudden explosion at a steel mill, causing time to stand still. Residents are forbidden from making any changes and spend their suffocating days in the hopes of returning to normalcy someday. One day, Masamune's mysterious classmate Mutsumi guides him to the fifth furnace of the steel mill, where they encounter a girl who cannot speak and resembles a wild wolf. The meeting between the two girls and Masamune disrupts the balance of the world, and the unstoppable "impulse of love" from boys and girls tired of their daily lives begins to destroy the world.