Season pulse
Episodes
30 episodes
Episode 1
After falling through the crack of time and space, Da-dong finds that everything familiar has changed. It turns out that ten years have gone by.
Episode 2
The new boss of class KO One and Da-dong are at odds with each other. While chasing a thief, Da-dong accidentally sees a secret that cannot be told.
Episode 3
Upon learning of Wan-jun's secret, Da-dong asks an old classmate to help. Ling-ling is in a critical condition, which forces Wan-jun to make a choice.
Episode 4
Unaware that he has become a spoiler, Da-dong takes part in a school election. Huang Fei, the class teacher hates Da-dong more and more each day.
Episode 5
Da-dong's ballots are burned, but he is unwilling to accept defeat. Just at the nick of time, he covers up for Lei Ting.
Episode 6
Not being able to understand the good intentions of Da-dong, Lei Ting keeps fighting with him. A mysterious girl shows up at school.
Episode 7
Romantic feelings are growing between Lei Ting and Da-dong. What's-his-name discovers an unknown side of his father. Xiao-jie is staying at KO One.
Episode 8
Lei Ting causes an misunderstanding as she tries to stop Xiao-jie from a wrongdoing. Hoping to find the truth, Da-dong sets out to look for evidence.
Episode 9
Wan-jun feels bitter as Lei Ting cares more and more about Da-dong, who receives a bizarre warning.
Episode 10
The identity of the "Non-existent Student President" is finally exposed! A mysterious person confronts Da-dong and knocks him out.
Episode 11
Class KO One is shocked when the identity of the kidnapper is exposed. Lei Ting realizes her own feelings and those of Wan-jun.
Episode 12
Due to a strange combination of circumstances, Lei Ting and Da-dong are trapped on an island and forced to spend a night together.
Episode 13
Lei Ting decides to tell Da-dong her feelings, but someone spoils the mood. A man descends from the sky and calls Da-dong's name before passing out.
Episode 14
Lei Ting finally tells Da-dong about her feelings. Wan-jun beats up Da-dong for Lei Ting, yet Da-dong seems to have changed into a different person.
Episode 15
Da-dong's memory is in disarray. Ling reveals his identity to Da-dong and explains what has happened to him.
Episode 16
Da-dong gradually loses his memory. Class KO One prepares a surprise for Da-dong, who is determined to win the competition for the class.
Episode 17
Lei Ting is unhappy. Qiu Qiu is looking for a missing item, but Ling misunderstands and discovers that there is a deeper tie between them.
Episode 18
Everyone in KO One tries to pull out the best tricks to help Qiu Qiu pass the test. Qiu Qiu wants to lend her ring to Ling, yet he turns her down.
Episode 19
Lei Ting begins to see hallucinations accompanied by severe headaches. Wan-jun's house is burned, while Ling's tent is also being trespassed.
Episode 20
Lei Ting must confront the past that she has been reluctant to face; her past with Wan-jun also comes to light.
Episode 21
The sealed memory of Lei Ting is unraveled, but the truth breaks her down and drives her to tears. In order to protect her, Wan-jun makes up a lie.
Episode 22
Lei Ting reveals the secret to her classmates and reconciles with Wan-jun. The class is in danger. Luckily, the new transfer student saves the day.
Episode 23
Ling and Wan-jun work together to investigate Geng Lie. Wan-jun rushes to the rescue when a debt collection group forces Qiu Qiu to work off the debt.
Episode 24
Wan-jun decides to break ties with Lei Ting. Geng Lie saves a girl who keeps calling him "King Arthur" despite having lost her memory.
Episode 25
Wu-xiong tells Geng Lie about her love for him, but it only makes his heart ache. Lei Ting shows her affection for Wan-jun, who feels rather mixed.
Episode 26
In order to bring King Arthur back, Wu-xiong decides to look into the memory from ten years ago. The spell imposed on Lei Ting is lifted.
Episode 27
Lei Ting and Wan-jun decide to face the future together. To protect the two of them, Hua Ling-long pulls a risky move.
Episode 28
Everyone thinks it's too much when Hua Ling-long goes after Qiu Qiu. With the raging epidemic virus, the Gold Dimension might be obliterated!
Episode 29
While facing off with Professor Pang, Lei Ting stumbles on an unbelievable truth. Prof. Pang goes so far as to destroy the Door of Time and Space.
Episode 30
The end is near, and the virus is spiraling out of control. Professor Pang feels a strong sense of regret, but everything seems to be inevitable now.