?

Espers fight monsters/aliens but they need a heeler (personal or not). They're called Guides. Guides are ranked like Espers too and they get matched to Espers. Sometimes the matching rate gets above 90% which is very rare and benefitting to the Espers.

Espers are soldiers; Guides are doctors. If u were a high ranking soldier, do you want a student doctor to heal you? No, right? Guideverse is the same. In this manhwa, the esper is really strong so naturally, he is assigned a really good doctor. Espers fight, Guides aid. After every mission, Guides heal Espers so they can fight at their full potential on the next mission.

Although guides can heal espers, their compatibility is a major factor. Espers and Guides should be compatible enough to not hurt one another. Strong soldiers need strong doctors. Weak doctors can't heal badly hurt/ near death soldiers. Strong espers need many amounts of medicine, only strong guides can provide. In Guideverse, that medicine is either physical contact or extreme intimacy. Normal Espers can continue their mission after a short holding hands with a normal guide. Strong espers' need vast amount of time to absorb a normal guide's medicine. See how the compatibility of the two characters affect each other? One of them will die when their compatibility isn't synced.

thank you guys for answering.. you even have to write a long paragraph to explain to me.. I really appreciate it