Six months later, Grotto Heaven.
"Mom, I'm leaving, I have a Martial Arts class today!"
Zhang Peng walked out the door, school uniform on, with a piece of toast in his mouth.
"Eh, eh... be careful on your way, don't go to places where there are few people. I've heard that in the next city, Martial Artists from another world have already appeared."
His mother chased after him, her face filled with worry.
Zhang Peng waved his hand absently, swallowing the toast, and caught a glimpse of a new slogan painted on the wall across — 'Strictly guard against other-world portals, it's everyone's responsibility!'
'Encounter strange individuals, call the Special Review Bureau hotline immediately!'
'Train diligently in martial arts, improve daily!'
...
Occasional pedestrians on the street hurried along, and the security seemed tenser than before by many folds.
"Ah..."
Zhang Peng sighed, thinking about the new content added to their textbooks recently.