Honkai Impact: Send your sister to World Snake at the beginning

The plane heading to Siberia crashed. When he opened his eyes, Fang Zuo turned out to be Raven's brother. The second Honkai Impact occurred before Siren died. I just had a sister yesterday, and before I pampered her properly, the brother and sister became refugees? On the way to escape, Gray Snake appears and wants to take away his sister. "Please, take my brother away too!" "Unfortunately, he has no such value." Farewell to his sister with tears, Fang Zuo set out on the road, his goal, his destiny! The world is collapsing, and there is an alien captain in the hopeless world. Is it the right way to let the protagonist Kiana save the world? Is the enemy really just a Honkai Impact God? The unprecedented Honkai Beast appeared and was "discovered!" In the pre-civilization, Hua gained a junior brother. Did that story that was destined to fail from the beginning bring him a deeper despair? "Nata, my brother is back." "I will expel those bad things from this world!" (You can watch it directly from Chapter 106)...