Shouhei Harada, a hulking figure at Meisei High School, commands attention with his gruff mannerisms and formidable stature. Though his brusque attitude and history as a boxer ward off troublemakers, cementing his status as an unofficial guardian, he reveals unexpected depth through thoughtful counsel offered to Tatsuya Uesugi—a testament to his quietly steadfast loyalty.

Years later in *Mix*, Harada resurfaces as a Meisei alumnus, his weathered features now marked by faint scars. Lingering tales of his past toughness color local perceptions, yet an enigmatic amnesia clouds his memory, stemming from an instinctive leap to shield Otomi Tachibana from oncoming traffic. While recuperating at the Tachibana home, he eschews conventional comforts, opting instead for a solitary tent in their yard—a nod to his self-reliant nature amid fractured recollections.

His earlier bond with Tatsuya, defined by mentorship that steered the younger student’s maturity, echoes in his post-amnesia impulses. Though mysteries shroud his past, Harada’s reflexive heroism during Otomi’s crisis reaffirms an unyielding drive to protect others, bridging his gruff exterior and enduring compassion across both eras of his life.