Wet Season revolves around the life of Ling, a schoolteacher who deals with infertility while having to take care of her infirm father-in-law at home. One of Ling's students, Kok Wei Lun, develops a crush on her during remedial Chinese classes. The two become closer as Wei Lun embraces Ling's extra tutoring.
| Actor | Role |
|---|---|
 Yeo Yann YannLing | Ling |
 Koh Jia LerKok Wei Lun | Kok Wei Lun |
 Christopher LeeAndrew Lim | Andrew Lim |
 Yang Shi BinLing's Father-in-law | Ling's Father-in-law |
| BBrayden KohMrs Chew's Son | Mrs Chew's Son |