In Madrid, Spain, Lucía and Xiang, two nine-year-old Chinese girls, meet at the beginning of the school year.
| Actor | Role |
|---|---|
 Daniela Shiman YangLucía | Lucía |
 Xinyi YeClaudia | Claudia |
 Ella QiuXiang | Xiang |
 Pablo MolineroJulián | Julián |
 Leonor WatlingSol | Sol |
 Carolina YusteAmaya | Amaya |
| YYeju JiShui | Shui |
| VValeria FernándezSusana | Susana |
 Julie ZhenWang | Wang |
| QQingfei ZhuFeng | Feng |
| GGabriel 'Chino' Marín CatalánEl Escape | El Escape |
| NNatalia Espejo RomeroCris | Cris |
| AAndrea GonzálezJeni | Jeni |
| AAkram Jabrane el OttmaniMustafá | Mustafá |
| PPaula VaquerizasMarilú | Marilú |
| LLidia NavarroPsychologist | Psychologist |
 Belén FabraDoña Angelines | Doña Angelines |
| LLihua ChengMama Li | Mama Li |
| NNina ReinaHao | Hao |
| YYonghong ChenMadre Xiang | Madre Xiang |
| YYong LiuPadre Xiang | Padre Xiang |
| LLimin Chen ChenHuichu | Huichu |
| AAitana Martínez OrtasChica 1 Cerveza | Chica 1 Cerveza |
| BBárbara GarcíaChica 2 Cerveza | Chica 2 Cerveza |
| BBeatriz LachezerovaChica 3 Cerveza | Chica 3 Cerveza |
| KKun ChenProfesor Chino | Profesor Chino |
| AAlba AmatVanesa | Vanesa |
| DDavid FernándezPadre Susana | Padre Susana |
| VVanessa VegaTeresa | Teresa |
| XXirou XiaoTraductora | Traductora |