Kim Sunghan/Synopsis

History
Kim Sunghan Awakened during the first dungeon shock, when dungeons first appeared in the world. He was brought into Haeyeon Guild, where he gained a reputation as the loyal shield of Haeyeon. As one of the higher-ranking Hunters of Haeyeon, Kim Sunghan became a part of Han Yoohyun's S-rank attack team and gained experience fighting alongside him.

Sometime during the first three years of the dungeon era, when dungeon breaks were more common, Kim Sunghan performed admirably during an A-rank dungeon break at Dongdaegu Station; his actions earned him significant recognition from the public.

Synopsis
Immediately after Han Yoojin regresses to the past, Kim Sunghan is assigned by Han Yoohyun to guard Han Yoojin and keep him at Haeyeon. He stops him from leaving to go to the Hunter Association, having his skills and stats checked by Yoojin in the process, and reports his activities to Han Yoohyun. He is assigned to guard Yoojin again the next day, when he goes to the Hunter Association to register as an Awakened person. When Yoojin slips his watch, Kim Sunghan sends a broadcast over the Hunter Mall's Lost Child Center calling for him, and catches him when he tries to go after Yoo Myeongwoo, later trying to dissuade Han Yoojin from offering Yoo Myeongwoo a place at Haeyeon and calling Han Yoohyun to confirm it.

Kim Sunghan continues driving Han Yoojin around and guarding him while he scouts out Bak Yerim and brings her back to Haeyeon, as well as when they go to visit her uncle Bak Sungtae. He maintains a strict distance between himself and Han Yoojin during this time, such as when he refuses to eat with him or even remain in the same room in favor of finding a better spot to protect the other two from. Though Han Yoojin continues to aggravate him by attempting to escape his protection, Kim Sunghan dutifully takes him to find Yoo Myeongwoo when he goes missing, and is pleasantly surprised when Han Yoojin gets his help to protect Yoo Myeongwoo, taking down a corrupt guild in the process. His apparent modesty about his outwardly honorable actions further elevates him in Kim Sunghan's eyes, and Kim Sunghan apologizes to him for his earlier disdainful attitude, offering to make it up to him and agreeing to buy him a drink.

Kim Sunghan follows through on this offer, taking Yoojin out for drinks the night before novice Hunter training at a location recommended by fellow guild member Kim Minee. He apologizes again and compliments Han Yoojin on being keen, calculating, and skilled, as well as being trustworthy and reliable. He readily explains how he Awakened and discusses his relationship with his grandfather when asked. The two then move to discussing drunken habits, with Yoojin claiming he confesses to people when drunk. Shortly after, he disables Poison Resistance and repeatedly tells Kim Sunghan he loves him, much to his amusement. Kim Sunghan is reminded of his grandfather because of the Perfect Caregiver title's effect. Kim Sunghan then escorts him back to his dorm in Haeyeon Guild. The next morning, he tells Yoojin about the events of the previous night, tells him that he reminds him of his grandfather, and asks if they could spend time together in the future as a result. He also sends up a hangover cure for Yoojin, worrying over his health.

Kim Sunghan later appears after Han Yoojin enters his first dungeon after the regression, coming to check on the team after the dungeon's abrupt rank change; he ignores Han Yoohyun in favor of approaching Han Yoojin to ensure he's alright, confusing those around him. Later, in response to an earlier request from Han Yoojin to meet before he entered dungeons, Kim Sunghan receives the Caregiver growth buff before entering an A-rank slime dungeon, and his stats grow during the attack.

Kim Sunghan is present when Han Yoojin is recovered from his first kidnapping, and brings a healer to heal Han Yoojin and Peace's injuries.

Han Yoojin reveals that Kim Sunghan has been sending him restorative herbal tonics periodically.

When Kim Sunghan is in the stamina training room for high-rank Hunters, he is approached by Han Yoojin, who wants to reapply the Caregiver growth skills. Upon trying to use his skill, Han Yoojin is given the notice that Kim Sunghan is ready for growth to stat S-rank, so long as he defeats an A-rank boss monster in one blow, single-handedly defeats an S-rank monster, or defeats an SS-rank monster alongside less than 10 people. In the end, after some casual conversation, Han Yoojin leaves him to his exercising without using his skill. Later, Han Yoojin comes back with items that will allow him to enter a dungeon with Kim Sunghan and help him get to S-rank. Kim Sunghan objects, worried about his safety, but eventually concedes.