"Tenjho Tenge: The Past Chapter" is a two-episode OVA that serves as a prequel to the main "Tenjho Tenge" series, delving into the backstory of key characters and the origins of the Juken Club. The narrative centers on Mitsuomi Takayanagi, a powerful and ambitious martial artist, and his complex relationships with his friends and rivals during their time at Todo Academy. Mitsuomi, along with his childhood friend Masataka Takayanagi and the enigmatic Bunshichi Tawara, forms the foundation of the Juken Club, a group dedicated to mastering martial arts and asserting dominance within the school.

The story explores the dynamics between Mitsuomi, Masataka, and Maya Natsume, a skilled fighter with a mysterious lineage tied to the Natsume Clan. Mitsuomi's growing obsession with power and control creates tension within the group, particularly as his rivalry with Masataka intensifies. The OVA highlights pivotal moments, such as Mitsuomi's manipulation of events to consolidate his authority and the tragic fallout that ensues. Maya's role as a mediator and her own struggles with her family's legacy add depth to the narrative, while Bunshichi's loyalty and eventual disillusionment with Mitsuomi's methods further complicate the relationships.

The OVA also introduces the concept of the "Dragon's Eye," a powerful ability tied to the Natsume Clan, and its significance in the broader conflict. The story culminates in a climactic confrontation that sets the stage for the events of the main series, revealing the origins of the animosities and alliances that define the Juken Club's future. Through its focus on character motivations, power struggles, and the consequences of ambition, "Tenjho Tenge: The Past Chapter" provides essential context for understanding the central conflicts and relationships in the "Tenjho Tenge" universe.