"AntiMagic Academy 'The 35th Test Platoon'" is set in a world where magic has become a destructive force, leading to the rise of witches who threaten humanity. To combat this, the Inquisition, a global organization, establishes Anti-Magic Academies to train soldiers capable of neutralizing magical threats. The story centers on Takeru Kusanagi, a skilled swordsman who wields a cursed blade known as Lapis Lazuli, which grants him immense power at the cost of his lifespan. Despite his abilities, Takeru is assigned to the 35th Test Platoon, a group of misfits and underachievers deemed the weakest in the academy.

The 35th Test Platoon, also known as "Small Fry Platoon," consists of Ouka Ootori, a hot-headed and determined leader with a tragic past; Usagi Saionji, a timid but highly intelligent girl with a knack for technology; Mari Nikaido, a cheerful and resourceful medic; and Ikaruga Suginami, a laid-back and enigmatic sniper. Together, they face ridicule and low expectations from their peers and superiors. However, the platoon’s dynamics begin to shift when they are tasked with increasingly dangerous missions, revealing hidden strengths and deepening bonds among the members.

As the story progresses, the platoon uncovers dark secrets about the Inquisition and the true nature of witches. Takeru’s cursed sword and his connection to a powerful witch named Ouka, who harbors a mysterious past, become central to the narrative. The group confronts internal conflicts, moral dilemmas, and external threats, including rogue witches, corrupt factions within the Inquisition, and the looming threat of a global magical catastrophe. Themes of loyalty, sacrifice, and the blurred line between good and evil are explored as the platoon fights to protect humanity while grappling with their own identities and purposes.

The manga balances action, drama, and character development, with a focus on the growth of the 35th Test Platoon from a group of outcasts to a formidable team. The narrative delves into the complexities of its world, where magic is both a curse and a tool, and where the line between hero and villain is often ambiguous. Through its intricate plot and well-developed characters, "AntiMagic Academy 'The 35th Test Platoon'" presents a compelling exploration of power, morality, and the human condition in a world teetering on the brink of chaos.