Miyabi Nagumo

Appearance
Nagumo is a tall, fair-skinned teenager with light blond hair and light blue eyes. Kei Karuizawa says that he doesn’t lack in the looks department but to her he is not someone who can rival the likes of Kiyotaka Ayanokōji.

Personality
Nagumo is a leader who likes to rule through an iron-fist, and is kind of a man who would expel anyone who tries to oppose him. Manabu Horikita suspects him for expelling 7 out of 12 students from the second year that had Nagumo involved in one way or another. He considers Manabu as his rival and keeps on challenging him, also trying to prove that he is better than Manabu. Despite Manabu already graduating, he now targets his little sisters and takes joy in the fact that she is somewhat now directly under his control after she joined the student council.

It is later revealed by Ikuto Kiriyama that Nagumo promised the second year students reforms where ones who surpasses the boundaries between classes and are capable of making allies from different classes will be pulled up to A-Class. He believes in the ideology of winning the war at the expense of a battle as he lost to Manabu but was also able to drive Akane Tachibana to the point of expulsion.

He is shown to be quite persuasive as he got Honami Ichinose to give up her secret to him without much interaction between them beforehand. Although, this is also due to her gullible and credulous nature. He is also extremely narcissistic, but not to the point of Rokusuke Kōenji. He also likes to make those around him into his "toys", showing his deprave mindset.. He is also not afraid to hurt his "toys" or sacrifice them for himself and his benefits such as when he gave Ichinose's secret to Arisu Sakayanagi. He can be livid when things doesn’t go his way such as when Kiyotaka Ayanokōji intervened during his plan to force Honami to become his girlfriend, only to have her saved by Kiyotaka instead.

He is also seen to be attracted to hot girls such as Honami Ichinose and Suzune Horikita and tries to charm them whenever he has the chance. He purposely refers to them by their first name after brief interactions and will take whatever chances to get close to them. For instance, he attempted to force Honami to rely only on him by entering a relationship with him as well as prolonging a hand shake with Suzune and looking at her tantalisingly. He has a reputation and aura of being a womaniser amongst the student body but despite that, some still views him in a good light.

Background
Nagumo was originally a Class B student when he first entered the school.

Plot
In the light novel, Nagumo's made a bet with Manabu Horikita, He eventually lost their bet but he successfully drove Akane Tachibana to expulsion with the assistance of Momoko Ikari.

Abilities
Nagumo was able to detect the lack of a "chosen" leader in Kiyotaka Ayanokōji's group during the Mixed Training Camp and he also has an eye for the very "beautiful". At school, he was able to gain control of the entire second year classes, and get onto the Student Council which was picky on who may enter. He also got Honami Ichinose to confess to him her past to him, although that was due to the latter having a gullible and credulous personality. He was manipulative enough to exploit this Achilles heel of hers and could had succeeded in his endeavour to make her into his girlfriend if it were not for the intervention of Kiyotaka.

Name Etymology

 * The name Miyabi consists of kanjis that mean "elegant, graceful" (雅).
 * Miyabi's surname Nagumo consists of kanjis that mean "south" (南) (na) and "cloud" (雲) (kumo/gumo).

Trivia

 * For the 2nd Year arc, when asked about his aspirations for the next year, he answered  'That's obvious, isn't it? To stir and enliven the school. To open the door to an order of meritocracy that has never been seen.'