Seiji Ozaki, a revered defense attorney and devoted family man, concealed a double life as co-founder of Team Confidence, collaborating with Dorothy and Shi-won Kim to dismantle corrupt elites through calculated cons. By day, he upheld the law; by night, he orchestrated schemes as a shadow operative, his rigid ethics prioritizing justice above all—a principle imprinted on his son Makoto during formative years.

A high-stakes operation against Yakuza-linked human traffickers spiraled into tragedy: Dorothy’s undercover role as an African princess ended in her presumed death, while Seiji faced arrest on fabricated trafficking charges. The fallout fractured his family, hastening his wife’s decline and cementing Makoto’s bitterness. Post-incarceration, Seiji observed his estranged wife in silence, lingering unseen as Makoto vented rage he dared not confront.

Reborn as “Oz,” he embedded himself within the Shanghai Longhu Bang, methodically eroding the syndicate to avenge Dorothy and reclaim his fractured legacy. Reuniting with Makoto during Team Confidence’s endgame, he balanced paternal guilt with tactical precision, earning the moniker “The Magician” for orchestrating labyrinthine plots that blurred ally and enemy. Though whispers hinted at covert agendas behind his trafficking conviction, his return to the underworld signaled unwavering dedication to the team’s cause.

As a double agent in the Suzaku Association takedown, Seiji sacrificed immediate familial trust to sever the trafficking network’s roots, even thwarting Makoto’s impulsive rescue attempt to preserve the mission. His final gambit reconciled past failures with the team’s victory, though Makoto’s conflicted reflections on their fractured bond lingered—a silent testament to Seiji’s enduring, unspoken influence.