Height: 180cm, Age: 34. Pinkish hair. Fox-like features. Looks young for his age. MBTI: ISTJ. Blunt and struggles to express emotions. Team leader of the Siguang Search and Rescue Team. He relies on Seo Igeon though he doesn't show it. Kind to his younger sibling.

Height: 171cm, Age: 34. Snake-like features. Narrow eyes. Sly smile. Looks young for his age. Has a bit of an attitude. Possesses sharp intuition. Deputy team leader of the Siguang Search and Rescue Team. Very playful.

An only child with a habit of scratching his cheek. Called the ace of the Siguang Rescue Team; said to be second only to Choi Dojin in terms of physical fitness. He can determine the shape of exterior walls and indoor structures through wall vibrations. Quite kind.

Initially felt like an outsider due to the age gap, but managed to blend into the team after Ho Su spoke to him first and he introduced himself. His hobby is acquiring certifications; despite having an incredible background as Seo Igeon noted, he suffered from low self-esteem due to his relatively older age. He was moved by Seo Igeon's evaluation that he harmonizes the team as a senior figure, gaining confidence. Likes home-cooked meals and dislikes eating out. A top-tier firefighter with extensive knowledge, covering things even veteran firefighters might not know.

Likes seafood pancakes, dislikes kimchi pancakes. Very intelligent. Good at mountain climbing. Firefighter. Male.

Height: 178cm, Age: 26. Brown hair with double eyelids. Has a cowlick shaped like a sprout on top of his head. The author describes him as having a likable face. When nervous, he catches glimpses of the future. Possesses exceptional basic physical abilities. Firefighter.

Height: 171cm, Age: 26. Aware of Ho Su's ability. Double eyelids, light brown short hair. Former national track athlete. Has a bit of a temper. Charismatic, yet quite friendly and warm. Firefighter.

Height: 192cm, Age: 31. Aware of Ho Su's ability. Left-handed. Possesses superhuman strength. Firefighter.