At the Beginning, He Was as Sharp as Fire and Entered the School to Save His Sister.

Gray fog envelopes the world, and the end of the world has come. As a result, more than 60% of humans turned into zombies, chaos broke out, and the world was in despair. But no one thought... Zombies are just the appetizer for disaster. Disasters such as parasitic beasts, aliens, mutant monsters, forbidden wastelands, demons, fallen ones, and devourers are coming one after another. This world is full of dangers, and there is a danger of death at any time. Fortunately... On the first day of the disaster, Chu Qianshan activated the doomsday survival system in order to save his sister. The novice reward is the Zanpakutō - Ryuken Wakahara! Everything in the forest is reduced to ashes, and the blades flow like fire! The residual fire sword cuts away all the filth! That's not all, the Mangekyo Sharingan, the Samsara Eye, the Frozen Fruit, the Shining Fruit, the Three-Color Haki, the Dragon-Slaying God Magic, the Serious Punch, the Ultimate Intention Kung Fu and other abilities, Chu Qianshan will unlock them all one by one! As a result, a seemingly ordinary boy quietly became the most terrifying boss in this apocalyptic world... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.