Du Chen, an E-rank summoner mocked by everyone, possesses an F-rank skeleton soldier. Whenever the skeleton dies, its level resets to zero, and it must slay 6,000 monsters to evolve. Du Chen ventures into Wild Wolf Valley to battle the Wolf King, learns to communicate with the undead, and forms a bond with his skeleton, sharing life and death. He meets Lin Wei, and together they fight fiercely through Frostwolf Fortress and the Shadow Altar, narrowly defeating their powerful bosses. As Du Chen's reputation begins to soar, he refuses to rush ahead. To complete his skeleton's remaining evolution progress, he returns to the mine and continues fighting.