Rokusuke Kōenji

Appearance
Rokusuke is a well-built young man of above average height with straight shoulder-length blonde hair and brown eyes.

He is often seen wearing the standard school uniform.

Personality
Rokusuke comes across as arrogant, self-entitled, and overconfident, no doubt due to his family's wealthy status and pedigree. When he was first introduced, he speaks to Kikyō Kushida with a contemptuous and sarcastic gentleman-like way of speaking while refusing to move from his position even though there was an elderly lady in need of a seat.

Rokusuke's egotistical and pompous nature and his inability to work with others can be a foil as it is what landed him in D-Class in the first place but he appears to not pay it any mind. He looks down on his classmates as shown when he taunted Ken Sudō about his imminent possible expulsion after his fight with C-Class. His self-inflated view of himself was further shown when on the cruise, he repeatedly complimented his looks in a mirror and when he refused to dry himself since it was menial work unworthy of him, causing onlookers to scorn at his blatant narcissism.

Unsurprisingly, Rokusuke has a self-serving and vainglorious nature as he later abandoned his class during the survival test so that he would not have to participate in it which caused the class to lose points. He showed no remorse in and after the act, revealing how selfish he can truly be at times. In some aspects, he is quite similar if not worse than Kiyotaka, where he doesn’t like to be disturbed and treasure his own personal time. He also couldn’t care less of what others thinks of him nor does he care what happens to them as long as nothing happens to him.

Unlike the other students in his class, he does not worry himself about earning points as his family can simply buy them for him.

Rokusuke's personality and abilities allows him to be completely unaffected by any sort of attack or threat as he just laughs it off or turns the tables around on his attackers.

Rokusuke has a habit of nicknaming others like:
 * Kikyō Kushida - Pretty Girl
 * Kiyotaka Ayanokōji - Elevator Boy
 * Ken Sudō - Red Hair
 * Arisu Sakayanagi - Little Girl
 * Kakeru Ryūen - Dragon Boy and Mr. Naughty

Plot
In Episode 1, he is first introduced on the bus, where he speaks to Kikyō Kushida. Here he refuses to move from his position even though there was an elderly lady in need of a seat. Eventually another person volunteers their seat.

Rokusuke volunteered to join Yōsuke Hirata's plan to explore. He passed through the forest by doing an acrobatic-movement along the trees, outpacing Kiyotaka Ayanokōji and Airi Sakura enough to vanish from sight range. He then dropped out of the camp by swimming and escaping to a nearby ship, causing a loss of 30 S-points to D-Class. At night, he complimented the beauty of the moon, while on the island his classmates were upset.

After the class returns from the island, Rokusuke compliments them on coming back victorious once they uncovered all the class leaders. Ken confronts him on ditching them, as he laughs this and defends his act by stating he was ill and needed to recover, while the class were not convinced.

Academic Abilities
Rokusuke is adept in his academics as he was able to score a passing grade on the mid-term. He was one of the few people who didn't take and memorize the old test answers from Kikyō Kushida. According to Honami Ichinose, the leader of Class B, Rokusuke is one of the few students in Class D that should be watched out for, implying that he could be somewhat of a threat even to those of the advanced classes. However, his poor character is an impediment for his class, limiting his chances of demonstrating his true capabilities.

Physical Abilities
As seen in Rokusuke's physique, he is very athletic as it was shown in the first volume of the light novel, that he's the fastest swimmer in his class, with a speed of 2.153 meters/second, which is considered to be on the tier of the World's best swimmers needing the amalgamation of techniques, precision and considerable strength. After taunting Ken Sudō and almost getting into a brawl, Kiyotaka Ayanokōji remarked that if Ken had attacked him, Rokusuke would have retaliated and defended himself, hinting that he is a more than the average fighter but that has yet to be seen.

He has great speed and acrobatic skills as shown when he went ahead of his class in the forest by jumping from tree to tree in the survival test.

Name Etymology

 * The name Rokusuke consists of kanjis that mean "six" (六) (roku) and "assistance" (助) (suke).
 * Rokusuke's surname Kōenji consists of kanjis that mean "temple, shrine, palace" (高) (kō), "circle" (円) (en) and "temple" (寺) (ji).

Trivia

 * As D-Class is a class for people with defective traits, Rokusuke has an egotistical nature and his inability to work with others.
 * For the 2nd Year arc, when asked about his aspirations for the next year, he answered  'Aspirations? I have nothing of that sort. I just want to be myself and continue to spend my days of FREEDOM.'