"Justice Guards Duklyon" is a manga series that blends action, comedy, and superhero themes. The story centers around three high school students—Kenta Hirono, Takeshi Momoi, and Shunsuke Minami—who are recruited by a mysterious organization to protect their city from alien threats. Each of the boys is given a special suit and weapon, transforming them into the Justice Guards Duklyon. Their mission is to combat the alien invaders known as the Dark Warlocks, who seek to conquer Earth.

Kenta, the leader of the group, wields a sword and embodies a strong sense of justice, though his impulsive nature often leads to comedic mishaps. Takeshi, the brains of the team, uses a bow and arrow, balancing Kenta's recklessness with strategic thinking. Shunsuke, the youngest and most laid-back member, fights with a boomerang, providing a carefree contrast to his teammates. Together, they navigate the challenges of balancing their secret superhero duties with their everyday lives as students.

The narrative unfolds through episodic battles against the Dark Warlocks, with each encounter revealing more about the aliens' motives and the origins of the Justice Guards. The series incorporates humor through the characters' interactions and the absurdity of their situations, such as their struggles to keep their identities hidden from classmates and teachers. As the story progresses, the stakes escalate, leading to larger confrontations and deeper exploration of the team's dynamics and personal growth.

"Justice Guards Duklyon" also features a supporting cast, including their mentor, who provides guidance and upgrades for their equipment, and various classmates who unknowingly influence the team's missions. The manga maintains a lighthearted tone despite its action-packed premise, making it an accessible and entertaining read for fans of superhero and school-life genres. The series concludes with a climactic battle that tests the Justice Guards' resolve and unity, bringing their journey to a satisfying close.