Hidenori Tabata, a second-year student at Sanada North High School, forms the central trio alongside Tadakuni and Yoshitake Tanaka. With brown hair and grey eyes, he consistently wears large frameless glasses despite possessing extra-sharp 2.0 vision, making them purely aesthetic. His most common attire is the school uniform—a white collared shirt, striped red-and-blue tie, and dark blue blazer and pants—frequently worn untucked outside school. A timid child, Hidenori endured frequent bullying near an old shrine, suffering beatings and extortion. His life transformed when the hero Rubber Shooter intervened, gifting him an emergency whistle. During a later incident, Rubber Shooter appeared without the whistle being blown, terrifying the bullies. This profound encounter inspired Hidenori to emulate the hero's ideals. He never saw Rubber Shooter again but later discovered Yoshitake was the identity during their middle school years. Hidenori exhibits a dual nature: outwardly stoic yet internally energetic and imaginative. He constantly initiates elaborate role-playing scenarios and harebrained schemes, driven by a desire to escape routine and create an extraordinary life. This manifests in diverse avatars: the loud warrior "Jack" introducing himself emphatically, the inept fighter "Depp," the money-focused "Bath-house Owner," the strategic "Hopper," and a radio DJ hosting "Hidenori Tabata’s Talking FS," highlighting his creativity and flamboyant improvisation. He values friendship deeply, becoming emotional when supported and distressed when excluded. Hidenori often overanalyzes social situations and grows frustrated by missed contextual cues, a trait shared with Yoshitake. His self-righteousness is tempered by genuine concern for others' perspectives and a consistent instinct to help, barring extraordinary circumstances. His ambition to "go overseas and help people" reflects his aspiration for a meaningful life, influenced by his childhood rescue. Hidenori demonstrates surprising athleticism, performing a 5-meter horizontal jump with minimal run-up and converting falls into one-handed somersaults. He possesses "Zipper Magic," controlling his pants’ zipper without physical contact, albeit with visible effort. His home life includes an older brother, Yūsuke, the trio’s former ringleader before leaving for college. Hidenori is often targeted by the Literature Girl (Yassan), who misinterprets his poetic lines as profound, leading to comical misunderstandings. His surname "Tabata" means "fields," while "Hidenori" carries potential meanings like "love and compassion" or "excellent merit" depending on kanji interpretation. He ranks sixth in the series’ character popularity poll, with his avatars like Jack and the Bath-house owner also appearing separately. Hidenori features in nearly 50% of the manga chapters, making him the most prominent character.