Dogeon

Do-geon (played by Kim Namjoon) as one of the main characters of <7Fates: Chakho> "is a crime expert who's had a hard life and has survived in the back of alleys of the city. He can handle all sorts of firearms and is very perceptive so he is strong even on his own. At first, he refuses to join the Chakho team, he feels he can work on his own and doesn't need a team. But for some reason as he keeps running into them, he starts thinking maybe it's his fate to become partners with them." - Kim Namjoon, 7FATES: CHAKHO with BTS (방탄소년단) | Interview | RM

Wattpad
As described by Zeha in episode 6, Do-geon is “extremely nimble for his physique… he had brown hair and dark eyes which sat under his thick eyebrows, making him look scrupulous. His nose looked as though it’s been sculpted, high and sharp. The man was rather handsome. His coat was flashy as well as his tattoos on his neck and chest. This impressed Zeha”. Do-geon's choice of weapon is a gun.

Personality
Do-geon was somone who had experienced a hard life, suffering from poverty. He is extremely skilled in shooting with firearms. He is perceptive and strong, but his weakness is his stubbornness to seek for help.

Parents
His parents are unknown.

Beom Relationship
Do-geon's friends were murdered by Beom one night and he gets nightmares about the incident, feeling guilty for not being there when it happened. He is looking for a Beom with a tattoo on his back and a scar underneath his eye, named Bulti.

Zeha
At their first meeting in episode 6, Do-geon exclaims, “Whats wrong with me? Am I crazy?” and, “I feel like I’ve fallen in love”. This prompts Zeha to explain that he "is not interested in men!" leading Do-geon to laugh.