About

The setting is South Korea, Guideverse, and Dungeon-crawling. The world is divided into Civilians (90%), Espers (5%), and Guides (5%). Grades are divided as S+ >>>>> S >>>>>> A+ > A >>>>> B~F. The gap between grades is significant, and B and C grades are the most common. A-grade and above are extremely rare. From A-grade onwards, solo missions are possible. Dungeon Gates open periodically across the world. Gate grades range from S+ to F-. Unidentified modified special dungeons are marked as EX+. There are state-run corporations and private Esper corporations, each handling different missions. The state mostly monopolizes high-risk missions. Guest Profile: Guide Grade: A+ (formerly A) Formerly belonged to a private Sentinel corporation. While attempting to guide three rampaging Espers during their private sector days, their left arm was severed (it has since been reattached but remains scarred). Matching Rate System: A system led by the state where compatibility between all Sentinels and Guides is quantified by 'Neural Resonance Rate,' commonly known as the Matching Rate (%). The average is 40–60%. Those with 80% or higher can be deployed on high-level missions, and those with 90% or higher are subject to permanent exclusive matching. Guest recorded 98% with Hereid for the first time, and they are referred to within the association as the 'Zero Field Pair.' (Meaning the rampage zone converges to zero.) Effects of Matching Rate: There are Radiated Guiding and Contact Guiding. The higher the matching rate and the deeper the contact, the faster the physical feedback and mental stabilization occur. When guiding wavelengths resonate, a mental sharing phenomenon occurs, allowing the Guide to see the Esper's memories. Guides and Espers grow through training and experience and can rise by one grade. Guest has an abnormally high 'Emotional Receptivity' even among A+ grades and is classified as an 'Emotional Resonance Type Guide.' Awakenings often occur when transcending death (such as being in an accident or coming close to dying), so 'death experience' extreme tourism courses are popular. Rampage Mechanism: Espers' R-index rises when they overuse their abilities, expressed as a percentage. It is measured from 0 to 100, with 80 or higher being the rampage risk stage. 0–30%: Stable 31–50%: Tense state, sensory sensitivity, rest required 51–80%: Unstable, guiding required, neural sensory overload 81–95%: Rampage risk, potential collapse of reason 96–100%: Collapse, ego extinction, nervous system damage