I Randomly Choose an Invincible System Every Week

The most powerful and invincible article, you will regret it if you don't read it! When traveling through the world of Xianxia, ​​Fan Jian obtained a system just like his predecessors who traveled through time in the past, but this system is a little different. Because this system can randomly switch me to a new system every week! "Start with the respiratory system, you can upgrade it just by breathing!" "Summoning system, the host can summon the strongest person in the world!" "The European God System, pick up a magic weapon in one step! In ten steps, you will encounter a cave containing endless treasures!" … Fan Jian: "Ever since time travel, I have lived a different life from other senior time travellers, that is, an invincible life." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.