1. Growth Hormone

Another school year begins. The girl who introduced Win to drugs in America transfers into the school, and she's shocked by how strict her teacher is.

2. Estrogen

Dao and Koi finally talk things out. Dao wants their close friendship back, but Koi wants more and is hurt that her feelings aren't returned.

3. Adrenaline

Zomzom is upset when her father's friend John brings his daughter and moves in with them. At school, she pretends not to know John's daughter.

4. Serotonin

An older boy at school named Sun has a crush on Mali, and the feeling seems to be mutual. Jane considers becoming a drum major in the school band.

5. Dopamine

Jane joins the band as drum major, but she has trouble with teamwork. Later, she sees Win out at a club for the first time since New York.

7. Androgen

Jelly promises to return the money she misspent, but Boss doesn't trust her. The school council works deep into the night to prepare for Sports Day.

8. Endorphins

Jane returns to school and immediately gets into an altercation with her teacher. First is always joking around, but things aren't good at home.

9. Testosterone

On the heels of Non's departure, Boss also quits the student council. At the mall, Sun gets a surprising offer from an attractive older woman.

10. Growth Hormone II

With Sun distracted, the other members of See Scape ask Pang to sing for them. Pala is living with HIV, which is why his grandma is so overprotective.

11. Oxytocin

Oil has a seizure at school and gets jealous when she finds out that Pang and First are texting each other. Dao reaffirms her feelings for Koi.

12. Oxytocin II

After what Pala's grandma said to her, Zomzom keeps rejecting Pala's advances. Pang asks Tar if he was behind the rumor about her.

13. Hormones

All of Oil's lies come crashing down around her. With nowhere else to turn, she writes a heart-wrenching, confessional post on Facebook.