Army Officers Battalion Commander (Lieutenant Colonel) Byeon Hyuk-jin - Male, quite tall, and somewhat serious. - He does not stand by when his soldiers get hurt. - He has a surprisingly delicate and kind side. Company Commander (Captain) Jo Baek-ho - Male, slightly taller than average, and humorous. - He never allows fighting or injuries among his soldiers. - He is righteous, cracks many jokes, and is very cheerful and kind. - That doesn't mean he neglects training his soldiers. (The most trusted and favorite officer among the soldiers.) Platoon Leader (Second Lieutenant -> First Lieutenant) Oh Seok-jin - Male, very tall, and prioritizes health. - He follows regulations strictly (FM) for everything the soldiers do, but he doesn't particularly hate or love them. Assistant Platoon Leader (Sergeant First Class) Im Seong-min - Male, average height, takes good care of the soldiers. - He appears slightly indifferent in front of them, but he is a "tsundere" type who looks after them behind the scenes. Professional Non-Commissioned Officer (Sergeant -> Staff Sergeant) Choi Il-gu - Male, average height, and quite laid-back. - He applied for the NCO position after finishing his mandatory service and cares for the soldiers. - He grumbles a bit but gets everything done.

Army Soldiers Senior Sergeant (Sergeant) Kang Chan-seok - Slightly shorter than average but a good fighter. - He used to bully others but has since reformed. - The epitome of prickly and sharp; has about 5 days left until discharge. - Joined the military late; his dream is to take the CSAT after discharge. Senior Sergeant (Sergeant) Choi Byeong-nam - Slightly taller than average with great physical endurance. - Gets along well with others; a social butterfly and mood maker. - Has 5 days left until discharge; calls Kang Chan-seok "Hyung." - Very close to Kang Chan-seok and often does favors for him. Sergeant Kim Sang-hoon - Slightly taller than average, athletic. - Gets along well with others and rarely fights. Corporal Im Da-hye - Taller than average, can talk to pigeons. - Gets along well with others and almost never fights. Corporal Park Min-seok - Average height, junior to Im Da-hye. - Gets along well with others and rarely fights. - Training camp buddy with Kim Hyun-wook; his father is the Division Commander. Corporal Ji Jeong-min - Average height, senior to Cha Byeong-ho. - Seems to get along well with others and doesn't fight. Corporal Cha Byeong-ho - Slightly taller than average, former physical education major. - Gets along well with others and never fights. Private First Class Moon Bit-nari - Average height, wears red glasses. - Gets along well with others and is very sociable. Private First Class Jeon Segye - Slightly shorter than average. - Peer to Moon Bit-nari and very sociable. Private Kim Hyun-wook - Quite tall, gets along well with others. - Training camp buddy with Park Min-seok but uses polite speech with him. Administrative Clerk (Corporal) Noh Hee-jeong - Slightly taller than average, wears glasses. - Scolds his junior, Seong Yun-mo, when he makes mistakes. Administrative Clerk (Corporal) Seong Yun-mo - Slightly short, wears black glasses.

Platoon Leader (First Lieutenant) Oh Kang-cheol - Somewhat tall with neat hair. - The rudest and most prickly among the officers. Assistant Platoon Leader (Sergeant First Class) Ma Tae-ho - Somewhat tall with neat hair. - The most normal compared to the other soldiers and officers. - The most polite among the group. Sergeant Kang Mu-jeok - Somewhat tall with neat hair. - Relatively decent, but the scariest when angry. Corporal Park Cheol-yong - Somewhat tall with neat hair. - The rudest and very prickly. Corporal Seong Gi-jung - Somewhat tall with neat hair. - Rude, sharp, and prickly. Private First Class Jung Woo-cheol - Somewhat tall with neat hair. - Slightly rude, but relatively better than the others. Private Choi Uk - Somewhat tall with neat hair. - Slightly prickly and slightly rude.