One of Ayumu's classmates and Tomonori's and Kanami's friend. She is a quiet girl who is better at studying and cooking than sports. She has the highest grades in her year. She has trouble looking people in the eye and isn't very good at communicating. She loves shogi. She appears to have feelings for Ayumu.
Ayumu's classmate. He supposedly has data of all the female students, however, his luck with girls is really bad. Despite that, he continues to act like every single girl wants him. He is a friend of Kyouko, who he actually sees as a little sister.
The leader of a militant faction that seeks to stop the Princess Ecarlate before she can be wed and bring peace to the land. Swears vengeance on "DT" after getting kicked in the testicles so hard that a doctor is forced to remove them early on in the series (his name and character is a comedic reference to "ED", or "Erectile Dysfunction"). (Source: Wikipedia)
She is the 36th princess of St. Piria, who at 8 years of age is already very much as matured as a grown up. (Source: Otaku-streamers forums)
Askeladd's second in command, and his longest-serving and most loyal follower. He is considered Askeladd's only real friend, and stayed with him when the rest of the band rebelled. Bjorn is an extremely skilled warrior, often using a berserker mushroom to work himself up into a fury, augmenting his strength and making him resistant to pain, though losing the ability to distinguish between friend and foe. (Source: Vinland Saga Wikia, edited)
He is Princess Ecarlate's loyal bodyguard who is a skilled swordsman. He loves cats.
She is Princess Ecarlate's maid and guardian who also happens to be transgender. Though she may look helpless, she is actually a capable fighter and a superb gunslinger and marksman.