After Being Reborn, I Bound Myself to a Politeness System

Lu Xinxin is reborn, reborn at the moment she loves most... Sorry, getting off track. Lu Xinxin is reborn, back in the high school years when she first went astray. This time, she's going to take back everything that belongs to her!

Just as Lu Xinxin is about to begin her sinister crawl, she suddenly hears:

"Ding! The Good Manners System has been bound. Would you like to start your missions?"

What? What System?

Lu Xinxin pauses mid-crawl, lost in thought.

The Good Manners System, observing Lu Xinxin's behavior, starts shrieking: Host, that behavior of yours is extremely rude! Initiating a Level One electric shock punishment.

After being shocked until she was charred on the outside and tender on the inside, Lu Xinxin puffs out a cloud of black smoke. "Thanks for the reminder!"

Theme: Reborn, and I'm the strongest