"Tenjho Tenge: Ultimate Fight" centers on the lives of students at Todo Academy, a high school where martial arts prowess determines social hierarchy. The narrative begins with Souichiro Nagi and Bob Makihara, two delinquents who transfer to Todo Academy seeking excitement and challenges. They quickly discover that the school is dominated by the Executive Council, a powerful student organization that enforces its authority through martial arts combat. The Council is led by Mitsuomi Takayanagi, a charismatic but ruthless figure with a hidden agenda tied to the school's history.

Souichiro and Bob cross paths with Maya Natsume, a skilled martial artist and member of the Juken Club, a group dedicated to preserving traditional martial arts. Maya is the inheritor of the Natsume family's dragon spirit, a mystical power that grants immense strength but comes with a heavy burden. Her younger brother, Shin Natsume, also possesses a dragon spirit, but his is unstable and dangerous, leading to internal conflict and external threats. The siblings' connection to the dragon spirits ties them to a centuries-old feud involving the Takayanagi family and the mysterious Enshin style of martial arts.

As the story unfolds, alliances and rivalries form among the students, with Souichiro and Bob becoming increasingly involved in the power struggles within Todo Academy. The narrative explores themes of loyalty, ambition, and the consequences of wielding power, as characters grapple with their personal motivations and the legacy of their families. The Juken Club, led by Maya, becomes a focal point for resistance against the Executive Council, culminating in intense martial arts battles that test the limits of the characters' abilities and resolve.

The series delves into the history of the Takayanagi and Natsume families, revealing a complex web of betrayal, revenge, and supernatural elements. Mitsuomi's plans to control the school and harness the power of the dragon spirits clash with Maya's desire to protect her brother and uphold her family's honor. The interplay between past and present drives the plot, as characters confront their destinies and the choices that define them.

"Tenjho Tenge: Ultimate Fight" combines action-packed fight sequences with a layered narrative that intertwines personal struggles with broader conflicts. The characters' development is closely tied to their martial arts skills, with each battle serving as a catalyst for growth or revelation. The series balances its high-stakes combat with moments of introspection, exploring the emotional and psychological toll of wielding power and the bonds that unite its characters.