Before the Destruction of the Earth, Start Level One Combat Readiness!

Two months before the earth was invaded by the second-level civilization of the universe, Su Mu was reborn with the knowledge of the seventh-level civilization of the universe. In order to prevent the earth from being destroyed like in the previous life, Su Mu decisively contacted the country, and the Dragon Kingdom decisively launched first-level combat readiness and synchronized the news with countries around the world. However, other countries did not take the Dragon Kingdom's early warning seriously and ridiculed the Dragon Kingdom for starting level one combat readiness. Until the day when the alien fleet arrives, war breaks out on the earth and the whole world falls. At the critical moment, the Dragon Kingdom steps forward to turn the tide! Other countries regretted their mistakes and frantically begged the Dragon Kingdom to take them away!