5.0
S1E1 - Testosterone
It's the start of a new school year. Popular student Kwan becomes class president, while bad boy Win challenges the school rules in a big way.
May 25, 2013, midnight
S1E2 - Dopamine
After playing guitar in one of Win's videos, Tar gets the chance to play with See Scape, the most popular rock band at school.
June 1, 2013, midnight
S1E3 - Endorphin
Kwan and Win are both chosen to represent their grade in the Teacher's Day ceremony. Sprite's flirtatious ways get her in trouble.
June 8, 2013, midnight
S1E4 - Serotonin
Phai loses his friends when he starts dating Sprite. The girls at school gossip about Tar and Toei. Mhog keeps neglecting his girlfriend.
June 15, 2013, midnight
S1E5 - Estrogen
Toei walks into her classroom to find the word "slut" scrawled on her desk. Tar wants to reach out to her, but things are still awkward between them.
June 22, 2013, midnight
S1E6 - Dopamine
Everyone is gossiping about Toei's run-in with the older girls. Thee and Tar get jealous when Toei starts hanging out with her ex-boyfriend again.
June 29, 2013, midnight
S1E7 - Adrenaline
A monk tells Phai that he's heading for a fatal destiny, but he can't stop getting into fights. He's also increasingly jealous of his girlfriend.
July 6, 2013, midnight
S1E8 - Progesterone
Although worried at first, Dao's mother ends up being impressed with Din. So much so that she asks Dao to invite him over for dinner.
July 13, 2013, midnight
S1E9 - Cortisol
Through Win's manipulations, Kwan finds out that her father has a secret son. Sprite struggles with her "easy" reputation.
July 20, 2013, midnight
S1E10 - Testosterone & Estrogen
Kwan gets caught cheating on the chemistry exam, and the news spreads like wildfire -- along with rumors about her parents. Win feels responsible.
July 27, 2013, midnight
S1E11 - Oxytocin
Summer break begins. Win takes his frustrations out by sleeping with girls at the club. Kwan meets her father's family. Sprite's baby sister is born.
Aug. 3, 2013, midnight
S1E12 - Growth Hormone
The students return to school. See Scape is performing at the Big Mountain music festival and Tar can't hide his excitement. Phu apologizes to Thee.
Aug. 10, 2013, midnight
S1E13 - Hormones
The two-day Big Mountain festival begins. Everyone's there, including Dao, who's lied to her mother about where she's going.
Aug. 17, 2013, midnight