"2001+5" is a science fiction manga series set in a futuristic world where humanity has colonized Mars. The story centers on a young man named Takuya, who becomes embroiled in a complex web of political intrigue, technological advancements, and existential questions about humanity's future. Takuya, a skilled pilot, is recruited by a secretive organization tasked with protecting Earth and its colonies from emerging threats, both external and internal.

The narrative unfolds against the backdrop of a society grappling with the ethical implications of artificial intelligence and genetic engineering. A key plot element involves the discovery of an ancient alien artifact buried beneath the Martian surface, which holds the potential to revolutionize human technology or, conversely, unleash catastrophic consequences. Takuya and his team must navigate alliances with rival factions, including a powerful corporation seeking to exploit the artifact for profit and a militant group advocating for Martian independence.

Central to the story are the relationships between Takuya and his teammates, each of whom brings unique skills and personal motivations to the mission. Among them is Aya, a brilliant scientist with a mysterious past tied to the artifact, and Ryu, a former soldier haunted by his experiences in the Martian independence movement. As the team delves deeper into the artifact's secrets, they uncover a conspiracy that challenges their understanding of humanity's place in the universe.

The plot is driven by a series of high-stakes missions, interspersed with moments of introspection and moral dilemmas. Themes of identity, loyalty, and the consequences of technological progress are explored as the characters confront the implications of their discoveries. The story builds toward a climactic confrontation that forces Takuya and his allies to make difficult choices, with the fate of both Earth and Mars hanging in the balance.