Problems with student discipline, cleanliness, and orderliness in the school environment pose challenges to character building. One approach to creating a neat and clean learning environment is implementing the 5R culture. However, its implementation in schools remains largely oriented toward physical cleanliness. This study aims to analyze the internalization of Islamic educational values, the application of the decluttering concept within the 5R culture, and its contribution to the formation of a 5R culture at SMP Labschool Unesa 1 Surabaya. This study employed a qualitative method using a case study approach. Data were collected through observation, interviews, and documentation, while data validity was tested through source and technique triangulation. The findings show that the internalization of Islamic educational values through decluttering occurs through three stages: transformation, transaction, and transinternalization, integrated into learning, habituation, and school culture. This process is also understood through the Islamic framework of takhalli, tahalli, and tajalli, in which students reduce undesirable habits, cultivate positive values, and manifest these values in consistent daily behavior. Students demonstrated increased awareness of cleanliness, orderliness, responsibility, and discipline, reflected in reducing unnecessary items, organizing learning equipment, maintaining classroom cleanliness, and carrying out class duties according to schedule. The process also fostered istiqomah through consistent implementation of the 5R culture. The study concludes that decluttering contributes as a starting point for implementing the 5R culture, helping students become accustomed to sorting, organizing, and maintaining cleanliness while consistently internalizing Islamic educational values in daily school life.