At the Beginning of the Chaos God King, My Sister Fainted on the Bed in the Rain

[High martial arts + crushing + single female protagonist + super cool and sweet] This is a world of high martial arts where combat mechas, ghosts and ferocious beasts coexist. Li Zefan was bound to the pet sister system, and his first task was to comfort his lovely half-sister who came home from the rain and fell unconscious on the bed! After completing the mission, Li Zefan gained the identity of Chaos God King and became the principal of an A-level martial arts academy! By doting on Bai Shihan, he successively obtained the ever-changing Chaos Blade and the god-level Chaos Alchemy Cauldron, crushing the genius of the world step by step! At the same time, he discovered that his non-biological sister, who was originally cute and cute, was becoming more and more strange! "Brother, you shouldn't be the principal of Longwulingyuan, right? Hum, do you think I will tell others?" "Well, kissing Brother Zefan's pillow is considered a kiss, right?" "Husband, don't be so close to other women. You can only be my man forever. Why are you in a daze? Do you hear me?" There was no other way, Li Zefan could only pamper his lovely wife. At the age of nineteen, he single-handedly resisted a wave of S-level ghosts and a wave of S-level beasts. At the age of nineteen and a half, he killed a giant lightning dragon in the divine transformation stage! Why work so hard? Li Zefan: "Because I want to protect this girl's safety forever!"