Kakeru Ryūen/Relationships

Kakeru is a delinquent of Tokyo Metropolitan Advanced Nurturing High School who causes trouble for anyone unfortunate to cross paths with especially those of the lower class at the school.

Classmates
He is the representative of his class, he and his gang make sure that his orders are followers leading his fellows by fear.

Arisu Sakayanagi
They appear to be familiar with each other as Kakeru remarked on how it looked as if she established her rule in the school very quickly. He swore to her that he will take down all the classes including hers so that he could rule the school as she found his declaration interesting and accepted the challenge.

Honami Ichinose
It is shown in Episode 3, that he knows her as he greeted her when she finds him and his gang harassing Ken Sudō. When he claims his group were acting in self-defense, she sees right through his lie and reprimands his cruel actions stating if they didn't let Sudō go then she'd get security. He complied showing without protest, trying to avoid unwanted trouble.

Ken Sudō
In Episode 4, Sudō and Kakeru are shown to be on hostile terms as Kakeru and his gang made fun of Sudō for being of Class D. His words easily provoked the latter who would have attacked if Kakeru's men held him down leaving at Kakeru's mercy. Kakeru approached Sudō taunting him over how he will be expelled for failing the upcoming test and Sudō flinched when it appeared Kakeru would attack only for him to just flick his forehead. Kakeru took joy in watching Sudō suffer and his torture of him would have escalated had Honami Ichinose not intervene and threatened Kakeru with security. Kakeru had later set Sudō up to be expelled in as he had his men attack him but made it look like Sudō was the aggressor in the situation.

His plan failed due to the intervention of Kiyotaka Ayanokōji and Suzune Horikita who defended Sudō and made Kakeru's men withdraw their complaint. Kakeru was infuriated his plan to get rid of Sudō failed and punished his men for not carrying out the plan.