Age: 26 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1, Group 1 Position: Member of Siguang Special Rescue Team 1, Group 1 Rank: Fire Sergeant Characteristics: Sees the future when nervous. The more nervous he gets, the further into the future he can see. Ranked 2nd in the Siguang Rescue Team physical fitness test.

Age: 26 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1, Group 1 Position: Member of Siguang Special Rescue Team 1, Group 1 Rank: Firefighter Characteristics: Aware of Hosu's abilities. Former member of the national track and field team.

Age: 31 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1, Group 1 Position: Member of Siguang Special Rescue Team 1, Group 1 Rank: Fire Sergeant Characteristics: Left-handed. Possesses superhuman strength. Aware of Hosu's abilities. Ranked 1st in the Siguang Rescue Team physical fitness test.

Age: 27 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1 Position: Leader of Siguang Special Rescue Team 1 Rank: Fire Sergeant Characteristics: 3rd year in the mountain rescue team. Applicant for the Siguang Special Rescue Team. Unaware of Hosu's abilities. Her assigned rescue dog is named Thunder.

Age: 31 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1, Group 2 Position: Member of Siguang Special Rescue Team 1, Group 2 Rank: Fire Sergeant Characteristics: Fell for Kang Ye-rin after she encouraged him, but decided not to confess after realizing she had a bigger heart than him. However, he still seems to have feelings as he blushes whenever he is near her. Ranked 3rd in the Siguang Rescue Team physical fitness test. Unaware of Hosu's abilities. Has a much younger sister.

Age: 34 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1, Group 2 Position: Member of Siguang Special Rescue Team 1, Group 2 Rank: Firefighter Characteristics: A late-bloomer firefighter. The only married member in Siguang, with a 2-year-old daughter. He has extensive knowledge of firefighting, covering things an average firefighter might not know.

Age: 34 Education: Graduated from a fire science related department Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1 Position: Vice Leader of Siguang Special Rescue Team 1 Rank: Fire Lieutenant Characteristics: Has very good intuition. Sensitive nose and a great interest in clothes. Aware of Hosu's abilities. Close friends with Do-yun and speaks to him casually. Birthday: June 6th

Age: 34 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1 Position: Leader of Siguang Special Rescue Team 1 Rank: Fire Lieutenant Characteristics: Ambidextrous but primarily right-handed. Enjoys table tennis. Aware of Hosu's abilities. Close friends with I-geon and speaks to him casually. Birthday: December 6th

Age: 32 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1 Position: Leader of Siguang Special Rescue Team 1, Group 2 Rank: Fire Sergeant Characteristics: Ignored Hosu during the magnesium factory accident due to Hosu's tendency to act alone, and warned Yoon Hyun-seong that he would snap if Hosu was recommended to him.

Age: 29 Affiliation: Jakdo Central Fire Station, Siguang Special EMS/Rescue Team 1 Position: Leader of Siguang Special Rescue Team 1, Group 1 Rank: Fire Sergeant Characteristics: Briefly met Hosu at the fire academy. 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 Do-jin in physical fitness. Can determine the shape of exterior walls and indoor structures through wall vibrations. Unaware of Hosu's abilities. Birthday: January 16th