The Símbolos de Sellado de la Torre first appear in Volume 2 as intricate carvings that blanket the walls and doors of the Tower, forming a complete seal designed to suppress the emotions of its prisoners. Across the series, these symbols evolve from a static, passive containment system into a dynamic, multi-layered mystical construct that interacts with the Tower's prisoners and the outside world. Their function expands beyond mere emotional suppression, becoming integral to the Tower's identity as both a prison and a nexus of sealed power.

The Símbolos de Sellado de la Torre first appear in Volume 2 as intricate carvings that blanket the walls and doors of the Tower, forming a complete seal designed to suppress the emotions of its prisoners. Across the series, these symbols evolve from a static, passive containment system into a dynamic, multi-layered mystical construct that interacts with the Tower's prisoners and the outside world. Their function expands beyond mere emotional suppression, becoming integral to the Tower's identity as both a prison and a nexus of sealed power.