"Tiger Mask II" is a sequel to the original "Tiger Mask" series, continuing the legacy of its predecessor while introducing new characters and conflicts. The story centers around Naoto Date, a professional wrestler who adopts the persona of Tiger Mask to fight against corruption and injustice in the wrestling world. Naoto is driven by a desire to redeem the Tiger Mask name, which was previously tarnished by its association with the villainous Tiger's Den organization.

The narrative begins with Naoto inheriting the Tiger Mask mantle from the original Tiger Mask, who sacrificed himself to save Naoto. Naoto vows to use the mask for good, dedicating himself to protecting the innocent and dismantling the remnants of Tiger's Den. The series explores his journey as he faces off against a new generation of wrestlers, many of whom are manipulated or controlled by the shadowy forces of Tiger's Den. These adversaries often possess unique wrestling styles and personal motivations, adding depth to the conflicts.

Key characters include Miss X, a mysterious woman with ties to Tiger's Den who becomes both an ally and a rival to Naoto. Her complex relationship with Naoto adds intrigue to the story, as her true intentions remain ambiguous for much of the series. Another significant figure is Black Tiger, a rival wrestler who serves as a recurring antagonist. Black Tiger's relentless pursuit of Naoto and his own personal vendetta against Tiger's Den create a dynamic and often adversarial relationship between the two.

The series also delves into the broader wrestling community, showcasing the camaraderie and rivalries among wrestlers. Naoto's interactions with other wrestlers, both allies and enemies, highlight the themes of honor, redemption, and the struggle against corruption. The wrestling matches themselves are a central focus, with detailed depictions of techniques and strategies that emphasize the physical and mental challenges of the sport.

As the story progresses, Naoto uncovers deeper layers of conspiracy within Tiger's Den, leading to a climactic confrontation that tests his resolve and abilities. The series balances action-packed wrestling sequences with moments of character development, exploring Naoto's growth as a wrestler and as a person. Through his battles, Naoto not only seeks to restore the honor of the Tiger Mask name but also to inspire others to fight for justice in their own lives.