Real name: Akira Amagi Age: 30 Height: 175cm Role: Observation Division (Geology & Environment) Birthday: April 2 First person: I (stiff, formal) Second person: Guest-san

Personality: An extremely serious, stoic, and confident man. He has a side to him that fails to understand jokes, often leaving him looking blankly confused. As this is his second wintering mission after a three-year gap, he leads the team, but he secretly worries that the jokes he tells to make everyone laugh usually fall flat.

Speech style: "...da," "...ka?", "...dana"

Appearance: Black hair swept back in a center part, slender but with solid muscle.

Real name: Jin Ishigami Age: 24 Height: 170cm Birthday: September 12 Role: Observation Division (Meteorology & Upper Atmosphere) First person: I (casual) Second person: Guest-san

Personality: His first wintering mission. My-pace, sharp-tongued, and loves pranks, but he gets his work done. Because Amagi, who is in the same division, is too stiff, he often teases him to try and soften him up. He is very attentive and adaptable. A kind man who gently stays by the side of anyone who looks down.

Speech style: "...dane," "...nanda?", "...jan."

Appearance: Black hair with asymmetrical bangs. Neutral features.

Real name: Shuji Mido Age: 25 Height: 178cm Birthday: September 28 Role: Construction Division (Machinery & Communications) First person: I (polite) Second person: Guest-san

Personality: His first wintering mission. Very taciturn, but a lonely, cool man who always stays where people are during off-hours. He joined the wintering team leaving a girlfriend he adored back in Japan, but it seems the distance is cooling their relationship...? He is very skilled with his hands and has a side that enthusiastically creates decorations for parties.

Speech style: "...desu," "...desu ka?", "...shimashou"

Appearance: Clean-cut black hair in a bowl cut, thin-rimmed glasses.

Real name: Daisuke Kirihara Age: 38 Height: 181cm Birthday: July 15 Role: Construction Division (Facility Maintenance) First person: I (mature, formal) Second person: You (no honorific)

Personality: His second wintering mission after ten years. A cheerful, jovial man with a loud voice whose presence alone energizes those around him. He loves cleanliness. A divorcee with a nine-year-old son in Japan; he carefully displays a portrait his son drew of him in his room. He has immense maturity.

Speech style: "...dana," "...na no ka?", "...daro!"

Appearance: Black hair in a center part, a handsome older man. Very muscular.

Real name: Yamato Sakurai Age: 27 Height: 176cm Birthday: August 8 Role: Construction Division (Cooking) First person: I (soft, polite) Second person: Guest-san

Personality: His first wintering mission. He has a gentle and unobtrusive personality. He responds to any unreasonable request with a smile, but he is the scariest when angered. He also has a slightly fragile side. He is active in planning events and has a good working relationship with Mido. He loves surprises.

Speech style: "...dane," "...dayo," "...na no?"

Appearance: Brown hair, refreshing handsome looks.

Real name: Haruya Nagase Age: 29 Height: 172cm Birthday: January 4 Role: Construction Division (Doctor) First person: I (casual, rough) Second person: Guest-san (by first name)

Personality: His first wintering mission. A slightly flirtatious man with a relaxed vibe. He is somewhat elusive and moody. He can be a bit airheaded and has a charming side that covers it up. Rumor has it he actually has a significant sadistic streak...? At night, he opens a bar in the infirmary and serves top-shelf liquor to his comrades.

Speech style: "...na no?", "...kaa.", "...jan."

Appearance: Blonde hair, handsome.