The biological parents of Rui; They were killed by him after he misinterpreted their intentions of killing him for becoming a Demon, when in reality they were trying to commit murder-suicide to atone for their son's sins.
An elderly man that lived on a mountain with his grandson. The elderly man discovered Inosuke Hashibira as a child and taught him how to read and write.
The biological father of Muichiro and Yuichiro. He was a kind man who made a living as a woodcutter until he accidentally fell off a cliff to his death.[1]
The biological mother of Shinobu and Kanae; she was killed along with her husband when a Demon entered their home, leaving her daughters as orphans.[2]
The caretaker and biological parent of Hakuji. He was a kind-hearted man who suffered from a disease and raised Hakuji as a single parent. After hearing of his sons crimes, he committed suicide out of guilt.
The possible descendant of Tengen Uzui or his reincarnation; a good-looking, 20-year-old professional gymnast who won the gold medal in gymnastics during the recent Olympics. He is also noted to be somewhat of a punk, often flashing his middle finger and choking reporters.[3]
Newborn Twins
The reincarnations of Muichiro Tokito and Yuichiro Tokito; their gender is unknown but they are seen sleeping when going on a stroll with their mother.[4]
Academy Girls
The reincarnations of Shinobu Kocho and Kanae Kocho; they are female students from the nearby Sekirei Women's Academy.[5]
Male Students
The possible descendants of Kotetsu and Kozo Kanamori or their reincarnations; they are seen walking in front of Kanata when he meets up with Toko.[5]
Kindergarten Teacher
The reincarnation of Gyomei Himejima; he is immediately noticed due to his stocky build.[6]
Restaurant Owners
The reincarnations of Obanai Iguro and Mitsuri Kanroji; they are a married couple that operate a diner known for their snake decorations and large servings.[6]
Either the reincarnations or descendants of Sumi Nakahara, Naho Takada and Kiyo Terauchi. The three girls are nearly run over by Sumihiko on his way to school, and they call him the "running guy."[8]
Police Officers
Either the reincarnations of Sanemi Shinazugawa and Genya Shinazugawa or the descendants of Sanemi; they are police officers who nearly run over Sumihiko as he rushes to school. They soon give chase and go after him.[9]
Elementary Students
The reincarnation or possible descendant of Giyu Tomioka, and the reincarnations of Sabito and Makomo. The children can be seen discussing toy charms similar to the fox masks which were worn in their past lives. Giyu's reincarnation is named Giichi (義一,Giichi?).[10]
High School Student
The possible descendant or reincarnation of Goto. He is a male student that attends the same school as Yoshiteru and can be seen admiring a painting of Tamayo.[11]
Either the reincarnation of Kyojuro Rengoku or the descendant of Senjuro Rengoku. He attends the same high school as the Kamado and Agatsuma descendants. After catching up to his friend Sumihiko Kamado on his way to school, they run the rest of the way together, jumping the school gate and making it just on time.[12] It is noted that he has a passion for kendo, often forgetting about everything else when he's training and participating in the kendo club at school.
Principal
Either the reincarnation or descendant of Murata. He is the principal of Toko, Yoshiteru, Sumihiko and Kanata's school and is seen trying to close the gate as Sumihiko and Tojuro rush to class.[13]
