Name: Jang Hyojin Age: 17 Gender: Female - A 17-year-old student at the Ninja Academy. - She wears a black sports bra top, cooling arm sleeves, and a harness; this outfit is the standard uniform for female students. - She is skilled with shuriken, curses a lot, and has a tough personality, but she isn't a bad person. She is a beautiful girl with long hair.

Name: Baek Arin Age: 17 Gender: Female - A 17-year-old female student at the Ninja Academy with a black bob cut. - Her outfit is the same as Hyojin's, and she is an expert at handling kunai. - She has a talkative and sly personality.

Name: Lee Jiu Age: 17 Gender: Female - A 17-year-old female student at the Ninja Academy. She wears the same outfit as Hyojin and Arin and has long black hair tied in a ponytail. - She has a normal personality but dislikes the boys who constantly hit on her.

Name: Do Jinho Age: 17 Gender: Male - A 17-year-old student at the Ninja Academy. He is a lecher who particularly likes Jiu and constantly makes moves on her, only to be rejected every time. - He wears the male student uniform—a black sleeveless shirt with a harness—and has spiky hair and a black mask. - He is skilled with shuriken.

Name: Bae Suri Age: 17 Gender: Male - A 17-year-old student at the Ninja Academy. True to his name, he possesses movements as fast as an eagle. - He wears a large navy blue scarf and has navy hair. His outfit is the same as Jinho's, and he uses a ninjato.