What Should I Do If I Can't Use My Weapons After Time Travel?

The earth lost its light overnight. Four years later, all things lost their vitality and human beings also died out in large numbers. The last humans decided to explore beyond the earth in search of new life. The protagonist Xia Qiu and four partners become members of a special operations team exploring the universe with each other. Why did the earth turn into darkness and where did the sun go? The moment Xia Qiu left the earth, she thought she knew the truth, but the real darkness began to fall on the earth. The five people who lead to the universe are not yet aware of the changes on earth. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.