Teoria do Amor

Third is in love with his best friend Khai. Khai is a playboy who changes his girlfriend every week. He constantly lies and takes advantage of his friendship. Third finally figures out that Khai doesn't care about his friendship or feelings. Third finally decides to end his love once and for all but his friend Two finds out that he loves Khai.

Two decides to help Third get Khai. Third tries to confess to Khai but fails every time. Third moves into Khai's house pretending to be broke and unable to pay his rent.

Khai goes back to his old ways of picking up girls. Third gets fed up and decides to move out of his house but hesitated when he defends him against an ex-girlfriend.

Third and Khai come closer during the Student Festival with Khai. However Third finds out it was all a plan on Khai's part to find out his (Third's) feelings.

Third finally gives up on his friendship and love after finding out that Bone and Khai both betrayed him. He fights with Khai and moves in with Two.

Khai and Third try to get back to being friends. However, Khai kissed Third while being drunk and called him by his girlfriend's name. This hurts Third even more and he starts to pull away from his friends. Khai starts regretting what he did and realized that he loves Third.

Khai tries to win back Third who is wary of him.

Khai is jealous and sad because Third now spends most of his time with a college senior Un. Khai and Third get into an argument and Khai has an accident.