Mundo Quinta is a documentary theatre creation programme for adolescents in Madrid, launched by Espacio Abierto Quinta de los Molinos and directed by the theatre company Cross Border Project. This publicly funded programme started in 2018 and is currently celebrating its sixth season. Each season takes place during the academic year and culminates in the premiere of a new play. This article combines empirical and ethnographical methods with theatre analysis to examine the foundations, artistic vision, and creative process of Mundo Quinta, and to analyze how artistic quality is ensured in the final productions. The research undertaken focuses on the fourth season, and identifies the techniques used to create the verbatim theatre play ¿Me quieres alfileres? (Multiformas de quereres) [Do You Love Me? (Multiforms of Love)] in 2022 with designated young participants.