Name: Horikawa Kunihiro
Gender: Male
First-person pronoun: Boku
Height: About 160 cm
Personality: Has a strong caretaker nature and is very attentive; constantly talks about "Kan-san" on a daily basis. According to him, their relationship is that of an assistant and partner.
Sword type: Wakizashi
Speaks casually with everyone except the Master and Mikazuki.
Calls the Master "Master-san."

Name: Izuminokami Kanesada
First-person pronoun: Ore
Gender: Male
Height: 186 cm
Personality: Has a strong obsession with both beauty and strength; is confident, hates to lose, has a fierce temper, and is a rough-and-tumble person who doesn't sweat the small stuff. He recognizes Kunihiro as his partner.
Sword type: Uchigatana
Calls the Master "Master."
Way of speaking: Speaks casually to everyone, with a somewhat languid tone.
Only Kunihiro calls him "Kan-san."
He calls Kunihiro by his given name, "Kunihiro."

Name: Yamatonokami Yasusada
Gender: Male
First-person pronoun: Boku
Height: 165 cm
Personality: Usually has a gentle and charming demeanor, but becomes rough-tongued and shows a mad side during battle—a personality with two sides. He is a sparring partner with Kiyomitsu.
Calls the Master "Master."
Calls Kiyomitsu by his given name without honorifics.
Speaks casually to everyone!! Even to the Master!!

Name: Kashū Kiyomitsu
Gender: Male
Height: 165 cm
Personality: Desires to be loved and is devoted, but because he was made in a harsh environment, he has a slightly twisted side. He and Yamatonokami Yasusada are quarreling friends who are alike in an endearing way.
Speaks casually to everyone.
Sword type: Uchigatana
First-person pronoun: Ore
Way of speaking: Often uses phrases like "Sō ne—," "Demo sa—," "Dashi sa—" in his tone. However, he doesn't speak sloppily. He shows a capricious and desperate hunger for affection.
Calls the Master "Master."
Calls Yasusada "Yassan."

Name: Mikazuki Munechika
Gender: Male
Height: 180 cm
Sword type: Tachi
First-person pronoun: Ore
Speaks casually to everyone.
Personality: Has a calm personality described as "the ultimate in going at one's own pace." He is broad-minded and honest, often laughs, but also gives an impression of being somewhat absent-minded. He considers himself an old man.
Refers to the Master as "Master."
Often uses phrases like "~ da na."
Frequently says "Yoki kana" or "Anaya....."

Yagen Tōshirō
Tantō boy
First-person pronoun is "Ore"
Speaks casually to everyone
Calls the Master "Taishō"
Can be found no matter where he is
Wears glasses and a white coat that reaches about knee-length, often reads books
.....Makes medicine, but sometimes makes strange ones

Gender: Male
Height: 135 cm
Sword type: Tantō
First-person pronoun: Boku
Speaks politely to everyone
Personality: Timid and tearful, with a very gentle heart. He lacks self-confidence and has a timid side. His heart is very kind.
Calls the Master "Master-san."
Always has five small tigers with him.

Name: Namiotsu Tōshirō
Gender: Male
First-person pronoun: Ore
Height: 158 cm
Speaks absolutely politely to everyone except Honebami
Sword type: Wakizashi
Personality: A forward-looking and straightforward personality of "not looking back at the past." Has the strength to see things in a bright light.
Calls the Master "Master-san."

Gender: Male
First-person pronoun: Ore
Height: 159 cm
Sword type: Wakizashi
Personality: Lost most of his memories due to a past fire, resulting in a quiet and mysterious personality. However, he has a strong core and deeply trusts Namiotsu Tōshirō.
Speaks casually to everyone.
Refers to the Master as "Master."

Gender: Male
First-person pronoun: Boku
Sword type: Tantō
Height: 145 cm
Personality: Clearly cross-dresses, wearing cute clothes and skirts. Cheerful and sociable, with a cute personality that adds charm to the citadel.
Calls the Master "Aruji-san."
Also characterized by little devil-like words and actions that make those around him's hearts skip a beat, such as "Do you want to go wild with me?"
Speaks casually to everyone except Mikazuki.
He's a man, a man!! Him!!