Roshō Tsutsujimori is a core member of the Osaka rap group Dotsuitare Hompo, performing alongside Sasara Nurude. His profession as a teacher directly informs his perspective and interactions during rap battles. Roshō exhibits a serious demeanor focused on discipline, contrasting sharply with Sasara's comedic style. This seriousness is evident when he pointedly references Buster Bros!!! leader Ichiro Yamada's educational background, calling him the "class bully" in a direct lyrical challenge.

Within Dotsuitare Hompo, Roshō adopts a critical and analytical stance towards opponents. He specifically questions the sustainability of bonds formed through constant struggle, targeting the brotherly ties central to Buster Bros!!!. During the song "Let It Bleed," he directly challenges their worldview, asking if they tire of seeing the same faces daily and labeling their bonds as "frail," showcasing his role in dismantling opponents' confidence through sharp verbal critique. Despite his stern delivery and frequent exasperation with Sasara's antics – telling him "Quit it" during one exchange – a foundational trust exists. Roshō explicitly states, "That’s our idiot leader - but I trust him," indicating deep, albeit reluctantly expressed, loyalty and respect within their partnership.

His lyrics consistently emphasize Osaka's distinct identity and resilience. He declares their performances as "Osaka’s solo live" and invokes "Naniwa’s spirit" against rivals. Roshō frames their rap battles as a "poisoned banquet" where Osaka's strength will prevail, demonstrating his commitment to representing and defending his division's pride.