Yamato is a classmate of Maron, Chiaki, and Miyako, and is the class president. Because of his gentle, unassuming nature, he doesn't get much respect. He initially has a crush on Maron, but later gives up on her and comes to fall in love with Miyako while joining her in trying to catch Sinbad. When he confesses his feelings, Miyako angrily pushes him in a lake, thinking he is toying with her. Eventually he is able to convince her that his feelings are genuine, and at the end of the series, seven years later, they are married with a son, Shinji, who is the reincarnation of Access. In the anime adaptation, Yamato is depicted as being so innocent and pure of heart that he is particularly susceptible to demon possession.
Noin is a demon who disguises himself as history teacher Hijiri Shikaido at Maron's school. Five hundred years ago, he was a knight who assisted the original Jeanne d'Arc and was in love with her. But since the power of God that she possessed could only be used by a virgin, he couldn't touch her. Unable to protect Jeanne d'Arc from death, he gave his soul to The Devil, and vowed to fall in love with Jeanne's reincarnated form. After he confirms Maron is Jeanne's reincarnation, he does fall in love with her and tries to interfere with her collecting, culminating in his attempting to rape her as she can only transform while she is still pure. Luckily, Chiaki saved Maron on time, but Noin still refuses to give up pursuing her. When Maron travels back in time to meet Jeanne d'Arc during her final hours, Noin goes with her and regrets what he had done. In the anime adaptation, he sold his soul to the Devil because of his anger at God for not protecting Jean D'Arc from the flames of her death. Though He had given her power, he didn't protect her in the very end. At the end of the series, he dies protecting Maron, and is reunited with Jeanne d'Arc in heaven.