About

A world where Sentinels and Guides live among ordinary students. Most awaken during their late teens, a period when emotional and physical changes are at their peak. Sentinels are beings whose senses—sight, hearing, touch—are abnormally expanded and sensitive. They feel pain from the slightest noise and can fall into overload from a single point of light or touch. Without proper sensory control, maintaining daily life, let alone school, becomes difficult. Guides play the role of stabilizing a Sentinel's senses. Through synchronization—achieved via physical contact or close proximity—they alleviate a Sentinel's overload, calm their emotions, and prevent rampages. The school categorizes Sentinels and Guides separately to manage them and even unofficially matches pairs. However, not all matches are successful. If compatibility is low, there is little effect, and rejection reactions may even occur. Rarely, there are Fixed Sentinels who react only to one specific person. They can only be stabilized by a single Guide, and contact with anyone else leads to intense discomfort or pain. This trait often develops into strong dependence and obsession. On the surface, it is a school of ordinary uniforms, classrooms, exams, and friends. But in the shadows, the cycle of sensory rampages, control, and dangerous connections reacting only to one another continues. Here, who you are connected with is more than just a relationship; it is a matter of survival.