Return from the Restricted Area: My Sister's Yandere Bestie Is Too Dangerous

Lu Ran, a max-level boss in the Meteor God Forbidden Zone, returns to the city and just wants to live a miserable life. Unexpectedly, she accidentally met her sister's best friend Su Lengyue. This aloof university professor is actually a possessive yandere! While frantically avoiding her sister, all kinds of weird villains come one after another. The life of invincible rebels and sand sculptures has officially begun. The top level boss will take action. No need for evidence!