Shinobu

しのぶ

Shinobu, Mikoto's actual sister, is a ninja who developed an infatuation with samurai and embarked on a journey to train herself. Due to her terrible sense of direction and clumsiness, she becomes lost deep in the forest and remains unaware of Ikuto's arrival for a long time. Upon learning that Ikuto is a master swordsman who defeated the Northern Leader in combat, she stubbornly demands to spar with him for days until he finally agrees. After Ikuto 'defeats' her, she becomes his disciple in swordsmanship; owing to her extreme stubbornness, which Ikuto has already experienced and refuses to tolerate, he is reluctant to deal with her.
Because Shinobu is so obsessed with becoming strong and sparring, she does not understand 'love'. This has been demonstrated on several occasions. During her match with Ikuto, when he accidentally grabbed her breasts, she did not recognize the feeling she experienced at that moment. On another occasion, while every other girl hoped Ikuto would visit their room as a sign that he loved them most, Shinobu assumed he would come to her room to spar. However, she does begin to feel jealous of others receiving attention from Ikuto, such as Rin and Suzu; after seeing Ikuto pat Suzu on the head, she becomes fixated on receiving similar praise from him.
Like most inhabitants, Shinobu is accompanied day and night by an animal, a cow named 'Beef Jerky'.