|First Appearance||Chapter 20|
|Main Stat||Physical Strength|
Seonu's looks before becoming a Dicer are never shown, and it is known from the story that she invested points in them, so presumably she was plain or even ugly. As a Dicer, though, she became slim, with smooth skin and brunette hair in a bob cut, large brown eyes, full lips and dainty facial features.
Seonju first appeared as just a member of a trio of girls from the class next to Dongtae's who became the object of attention due to their becoming suddenly much prettier. This happened just after Byungchul's death and it is implied they were in the first wave of students who laid hands on the Dice scattered in the event. They are later known as the "Three Fire Foxes" or "Three Vixens".
During the Pandora Arc, X announces the Eunju Mass Quest and the three girls decide to participate in order to eliminate her as a competitor for popularity and become the true queens of the school. They ally themselves with Daewoong and the rest of the Class 8 Family to execute a coordinated attack to kidnap her while she is being protected by Dongtae and Taebin. Miju is central to the plan: she manages to replace the pianist during Eunju's choral practice and when the other conspirators shut down the lights, she uses her Night Vision to abduct Eunju amid the darkness. She locks her in a cupboard.
Later, when Dongtae manages to free Eunju and the two try to escape to the rooftop, the Three Fire Foxes coordinate the attack on them.
Powers and AbilitiesEdit
Seonju apparently possessed a good level of physical strength as a Dicer.