Yoichi Saotome/Relationships

Tomoe Saotome
She commands Yoichi to hide under the bed when the vampires attack. Lacus Welt kills her. Gekkouin often makes an illusion of her when he tries to take possession of Yoichi's body.

Yayoi Endō
A member of Makoto Narumi's squad. She is killed by vampires when they are ambushed after Mikaela escapes with Yuichiro.

Kureto Hīragi
Lieutenant General of the Japanese Imperial Demon Army. He tortures Yoichi and Kimizuki to force Yuichiro in telling the truth during his "interview".

Shinoa Hīragi
The leader of Yoichi's squad. She enjoys pranking and teasing all of the members. She usually acts like she wants to protect Yoichi's innocence or blames him as the source of ideas for her pranks. From the prestigious Hiragi family.

Shinya Hīragi
He coaches Yoichi on sniping when they attack Fifteenth Progenitor Lacus Welt in Nagoya.

Yūichirō Hyakuya
Possibly Yoichi's closest friend. Yoichi takes every reasonable opportunity to glomp him. Yu was the one who helped him when he got bullied, and was ordered alongside him to be Yamanaka's gang's errand boys. After Yoichi reveals about his past and his regrets of not being able to save his sister, Yu hits him with a soda can and tells him that Yoichi's sister wouldn't want to be avenged; in addition to this, he states that a spoiled weakling like him would have no place in the army.

However, Yoichi helps him save a civilian girl when one of the vampires from the research facilities escape. When Yoichi finds out that Yu is safe, he tearfully runs up to hug him (although he accidentally makes Yu pass out). He and Shinoa are at his side when Yu comes to.

Guren Ichinose
Guren experiments on Yoichi and makes him a bearer of the Black Demon Series. His words help Yoichi overcome his demon when he first makes a contract. Commander of the Moon Demon Company. From the prestigious Ichinose family.

Rika Inoue
A member of Makoto Narumi's squad. She escapes with everyone else to the airport and holds a grudge against Shinoa's squad for the death of her two friends.

Shūsaku Iwasaki
A member of Makoto Narumi's squad. He escapes with everyone else to the airport.

Mito Jūjō
A member of Guren's squad. Both their squads faces off as a challenge by Guren to prove their worth and strength before the battle.

Tarō Kagiyama
A member of Makoto Narumi's squad. He is killed by vampires when they are ambushed after Mikaela escapes with Yuichiro.

Shihō Kimizuki
Kimizuki is skilled at cooking and often acts as the watches over his other squad members. Although he first appears to be temperamental, he actually strongly values family. When Kimizuki gets in fights with Yu, Yoichi often intervenes. Although Kimizuki has gotten in fights with the rest of their squad members, he has only shared barbed remarks with Yoichi.

Makoto Narumi
Leader of his own squad. He somewhat holds grudges against Shinoa's squad for the death of his comrades, but even so aids them in escaping from the battlefield at the airport and rescuing Yuichiro.

Aoi Sangū
Kureto's personal assisstant. She is present when Yoichi and Kimizuki are tortured.

Mitsuba Sangū
The second-in-command of their squad. She actually has experience in battle. She is close friends with Shinoa. She gets into fights with everyone except Yoichi. From the prestigious Sangu family.

Chess Belle
A seventeenth progenitor that they first encounter when heading back to the stronghold after their first mission. They meet once more on the battlefield of Shinjuku and are defeated. Later, they meet again at Nagoya City Hall in attempts to rescue trapped soldiers.

Crowley Eusford
A thirteenth progenitor that they first encounter when heading back to the stronghold after their first mission. For a short while they engage in combat with him. They meet once more on the battlefield of Shinjuku and are defeated. Later, they meet again at Nagoya City Hall where Crowley rules over in attempts to rescue trapped soldiers.

Mikaela Hyakuya
Yuichiro's family, who became a vampire. Yu convinces Yoichi to help him save Mika later on.

Esther Lee
A servant of Lucal Wesker. He is sacrificed as a meat shield when Yoichi fires at Lucal to kill him.

Horn Skuld
A seventeenth progenitor that they first encounter when heading back to the stronghold after their first mission. They meet once more on the battlefield of Shinjuku and are defeated. Later, they meet again at Nagoya City Hall in attempts to rescue trapped soldiers.

Lacus Welt
The vampire who killed Yoichi's elder sister.

Gekkōin
Yoichi's demon. He often replays memories of when Yoichi's sister died at Lacus's fangs. Although he possesses Yoichi at first, they come to get along. They chat when Yoichi goes to sleep, even going so far as to discuss their favorite colors. Thanks to this, Yoichi masters manifestation without any help.