Habara's older brother

Habara's older brother is a third-year student at Sanada North High.

Appearance
Habara's older brother is tall, with messy light-brown hair. His hairstyle resembles Tadakuni's in the manga, but is parted down the middle in the anime. He wears the North High uniform. Like other minor characters, his eyes are not shown.

Personality
Not much is known about his personality. He appears to be soft-spoken and does get weirded out by the antics of his sister's friends.

High School Girls are Funky: Uniforms
After mooching around and trying to think of something to do, Yanagin asks Habara for her brother's uniform. Startled, she asks why, and Yanagin responds that high school girls are funny no matter what they do. Despite Habara's objections, Yanagin takes the uniform and Ikushima wears it. Yanagin starts whirling her around playfully.

The two start giggling and Ikushima says the uniform smells funny. They then fall down and roll to the door of the room, when they notice someone's presence. It's Habara's brother, who's seen everything. After a pause, he announces he's home. The two girls shriek in embarrassment.

High School Girls are Funky: Skirts
Yanagin's senior has stopped by Habara's room, and remarks that the girls' skirts are too long. Following her lead, Ikushima and Yanagin pull up their skirts to an absurd amount, with the skirt-tops almost reaching their stomachs. Ikushima then points out that it was almost time for the punchline - Habara's brother would walk in and see them like this.

Yanagin's senior dismisses her worries, saying that he's a nice human being who'd laugh it off if he saw their underwear once or twice. The others are alarmed by this reaction. Then, as expected, Habara's brother walks by, stopping in his tracks - but the girls have got the punchline wrong. Instead of it just being him, he is accompanied by 3 friends from North High who all freeze on seeing the girls' outlandish attire. The three girls scream in embarrassment.

Trivia

 * He placed 30th in the character popularity poll, with 290 votes.