Global Mutation: Obtain the God-Level Breathing Technique at the Beginning

[Science fiction flow + system flow + cool writing] Wu Feng, who has experienced the apocalypse for twenty years, is reborn and returns to the classroom. There is only one day left before the apocalyptic virus breaks out... This time, he must make all preparations to welcome the 'baptism' of the virus. As a result, the god-level breathing system was accidentally activated. "You know 'Thunder Breath'?" "You know 'Wind Breath'?" "What about you? What do you know? 'Water Breathing', not bad." "You ask me what I know? Hey, I know 'God's Breath'!" Zombies, monsters, exotic beasts, and Loya ecology cannot stop his progress.