Four friends: Putri, Anisa, Imung, and Markus, try to change the money from the choir extracurricular that they accidentally omitted, by participating in the 'Doremi & You' singing competition. The struggle of the four friends to win the competition is difficult when Reno, the choir assistant coach who is expected to become their coach, turns out to be their toughest rival in the competition.
| Actor | Role |
|---|---|
 DevanoReno | Reno |
 Naura AyuPutri | Putri |
| NNashwa ZahiraAnisa | Anisa |
 Fatih UnruImung | Imung |
| TToran WaibroMarkus | Markus |
 Ence BagusMr. Hardi | Mr. Hardi |
 Sekar SariPutri's Mother | Putri's Mother |
 Simhala AvadanaPutri's Father | Putri's Father |
| FFellinda DucretCitra | Citra |
| DDyah Aniek MulaniImung's Mother | Imung's Mother |
| MMichael JakarimilenaMarkus' Father | Markus' Father |
| PPaundrakarnaReno's Father | Reno's Father |
| SSulistyo KusumawatiReno's Mother | Reno's Mother |
 Teuku Rifnu WikanaJohan | Johan |
 KaneishiaTania | Tania |
| SSudarmadhiImung's Driver | Imung's Driver |
| FFikri Nur AdaniAgus | Agus |
| FFinn MeiersBudi | Budi |
| GGregorius ArielCiko | Ciko |
| CChristian GeorgeDulah | Dulah |
| MMelky BajajMC Doremi + You | MC Doremi + You |
 Muhammad AbeDeriel Zubeen | Deriel Zubeen |
| KKedung Darma RomanshaGeorge Sutriawan | George Sutriawan |
 Pritt TimothyMichael B. Suprapto | Michael B. Suprapto |
| LLutfiSchool Security | School Security |
 Haru SandraTeacher A | Teacher A |
| JJegeg Putu GithaTeacher B | Teacher B |
| PPancoEka | Eka |
 Ojing J. RaharjoSoto Seller | Soto Seller |
| AAlex SuhendraMusic Shop Owner | Music Shop Owner |