The new academic year begins. Thirteen GEN6 students are brought to the mysterious Home School in a deep forest with no way to escape.

GEN6 students receive an unusual first lesson. They are ordered to 'take care of ducks'. If their ducks die, they will be punished.

Pennhung gets punished for failing to keep his duck alive. Meanwhile, other students face punishments that keep getting more unfair and cruel.

Master Amin gives the student who gets the most votes a chance to go home. Everyone uses every trick in the book to get their friends to vote for them.

The first exam at Home School begins, but it’s different from normal schools because there is a big prize to be won.

Maki and her friends try to find the right answer to pass the exam together, but only one of them will win the prize.

Love starts to blossom among GEN6 students. Home School adds the 7th rule to 'forbid love', but some students choose to break it.

Master Praeporn makes everyone play 'The Lizard Game', but the game destroys friendship and causes a rift between friends.

Home School's lessons become more and more cruel. GEN6 students become enemies in order to survive. Meanwhile, Maki gets closer to finding the truth about Run.

GEN6 students plan to run away from Home School and go back to their families, but Maki chooses to stay and search for her brother.

Disappointed in their families, everyone comes back to Home School. Maki and Tibet learn the truth about their past.

Home School starts using strange ways to cure students. Run tries to escape from the room he’s locked in to protect Maki and all the other juniors.

Run discovers Amin’s secret and past, as well as the history of Home School. Meanwhile, many students mysteriously disappear.

Maki and her friends try to find out what Project R really is. Run tries to escape again before it’s too late.

Run and GEN6 students are forced to play Master Prasath’s game where their friends' lives are at stake.

Home School falls under the control of Master Prasath. The previously disappeared students return to Home School, but their personalities have completely changed.

The parents are captured and brought to Home School to join Project R, a revenge project for students abandoned by their families.