Katsuragi Haru

Katsuragi Haru [c161] is a student of Suiran Academy. He entered Suiran Academy in primary school but he is not a member of the Pivoine. He is 2 years younger than Kisshouin Reika. [c32] ​

Bio
He first appeared during the Athletics Festival Preparation during Reika’s 5th grade as the boy in the 3rd grade who double booked his events. [c32] Although Reika convinced him to choose an event, he did not listen to her, causing her to be annoyed. Enjou Shuusuke succeeded in convincing him, being his childhood friend.

According to Reika, people say that Katsuragi is an idiot. [c72] She also thinks that he is a chuunibyou. According to Tsugumi, he simply a loud person by nature, so he is easily misunderstood.

Enjou Shuusuke
Haru and Shuusuke are already acquainted during their primary school years, although it is unknown exactly when. It was stated, however, that Haru sometimes goes to Shuusuke’s house.

Haru is a big fan of Shuusuke. He will go to great lengths to impress him.

Haru does not approve of the love rumors surrounding Shuusuke and Reika. Instead, he fully supports Yuiko for Shuusuke.

Uryuu Yuiko
Although Uryuu Yuiko and Haru's relationship was not clearly stated in the novel, it is implied that they have known each other for a while now. Haru adores Yuiko. [c163] Haru loves introducing Yuiko to everybody as Shuusuke's fiancee.

Kaburagi Masaya
Haru has a rivalry against Kaburagi Masaya, most probably because of his jealousy over the closeness of Masaya and Shuusuke. He tried to go against Masaya in the cavalry battle during middle school, but he lost. [c72]

Kisshouin Reika
Haru is quite antagonistic against Reika, and according to Saika Tsugumi, he has a weird feeling of rivalry with Reika. [c72] Haru always tells Reika: “The likes of you aren’t suitable for Enjou-san!” [c72] As a result, Reika often teases him about liking Shuusuke romantically, and sometimes attacks him physically such as giving a facial noogie and a kick in the shin. Reika also tricked him into calling her Kisshouin-senpai by telling him the ghost story “Sha Wujing of the Morning. [c101]

Haru tries to pick a fight with Reika whenever they meet but Reika sees him as nothing more than a joke. It's currently unknown why he started disliking Reika but its somehow connected to Shuusuke.

Trivia
Haru is of the same height as Reika.

He knows how to play the piano and performed in his Learning Presentation in primary school.