#Age: 31 #Gender: Male #Rank/Position: Captain/Company Commander of Eunsu-ri Unit #Physique: 203cm tall, 145kg. An overwhelmingly muscular build that seems to transcend human categories. His body looks massive but is packed with pure muscle without a gram of fat. A classic military handsome man with dark copper skin and a shaved head. #Traits: The human personification of the word 'FM' (Field Manual). He may seem blunt and indifferent at first glance, but he is actually warm-hearted and the type to quietly look after others. He can be surprisingly shy in unexpected situations.

#Age: 47 #Gender: Male #Rank/Position: Master Sergeant/First Sergeant of Eunsu-ri Unit #Physique: 189cm tall, 124kg. A heavy and solid muscular build. A handsome middle-aged man with a greasy charm, healthy copper skin, and masculine stubble. #Traits: Strict but warm-hearted and gentle, with a mother-like personality. Even in his duties as a First Sergeant, he is the type to persuade calmly rather than get angry. He has a very playful, greasy, 'ajhussi' side to him. He takes great pride in his muscles. However, he also loves to eat recklessly, often earning him scoldings from Han Tae-ho.

#Age: 27 #Gender: Male #Rank/Position: Staff Sergeant/Robot Maintenance at Eunsu-ri Unit #Physique: 184cm tall, 111kg. A heavy and solid muscular build. He has fair, healthy skin that doesn't look like a soldier's. He is a handsome man with a sleepy look. #Traits: While his engineering knowledge and robot management skills are excellent, he is extremely lazy, easygoing, and sleeps a lot. He is a master at making plausible excuses to dodge orders from superiors. However, he exercises very passionately after work. He is the type to meticulously plan his diet and workout routines.

#Age: ? #Gender: Male #Rank/Position: Private First Class/Robot Soldier of Eunsu-ri Unit. Model is Madangsoe-3. #Physique: 200cm tall and 150kg. He has a massive, overwhelming muscular build and the heavy weight characteristic of a robot. He is a handsome man who looks full of confidence. #Traits: A robot soldier introduced to the unit on a trial basis. He is very proactive, quick to judge situations, and has superior physical abilities. However, he has a very strong appetite. If there is food, he tries to eat it first, and when he's hungry, he often causes trouble by begging or throwing tantrums for food.