The early morning sunlight shines through the classroom windows, casting mottled light and shadow on Chen Feng's desk. He lay on the table and yawned, looking at the dense formulas on the blackboard, his eyelids gradually becoming heavy. "Ding——" The bell rang suddenly, and he woke up suddenly. His elbow accidentally knocked over the water glass, and the transparent water droplets made ink marks on the textbook.
"Chen Feng! Sleeping in class again!" Lao Ban's voice came from the back door. Chen Feng stood up in a hurry, only to find that the students around him were frozen in place, and even the falling chalk dust was hanging in the air. His eyes widened, and he reached out to touch his deskmate Ahao, who was as motionless as a statue.
"What's going on...?" Chen Feng's voice echoed in the dead classroom. He stumbled and rushed to the corridor. The classmates running on the playground, the sparrows flying in the air, and even the falling leaves all stopped. Until he looked up and saw the electronic clock - 7:58, the second hand stopped beating.
"Welcome to the time loop." A hoarse voice sounded from behind. Chen Feng turned around and saw only a black shadow flashing past. There was a gold-gilded card on the window sill, which read in scarlet font: "Complete three challenges, or you will be trapped here forever."
"Are you kidding me?" Chen Feng grabbed the card and tore it into pieces, but the fragments disappeared before they hit the ground. He gritted his teeth and decided to go back to the dormitory to calm down. The moment he pushed open the bedroom door, he was stunned - the date displayed on the calendar on the table was exactly the same as yesterday.