Natsuki Minami
A first-year high schooler and the second son of the Minami family. He's best known for being a reformed delinquent—Hosaka basically saved him by recruiting him to the volleyball club and giving him something to focus on.
His relationship with Haruka got off to a rough start when he accidentally touched her chest and got absolutely beaten down for it. You'd think he'd hold a grudge, but he doesn't. Instead, he's got this obvious crush on her that he barely hides. The clearest sign? When his older brother mentioned having a girlfriend, Natsuki immediately imagined Haruka in provocative clothing and got a nosebleed right there. It's pretty embarrassing for him, but the affection is unmistakable beneath all the awkwardness.
Content compiled by AnimeList.moe from publicly available sources.