"High-Rise Invasion" is a survival thriller manga set in a surreal, dystopian world where characters are trapped in a sprawling maze of interconnected skyscrapers. The story begins with Yuri Honjo, a high school student, suddenly transported to this strange environment. She finds herself on the rooftop of a high-rise building, surrounded by other confused individuals and masked assailants wielding weapons. These masked figures, known as "Masked People," are tasked with hunting and killing the trapped individuals, adding a layer of constant danger to the setting.

Yuri quickly discovers that survival in this world requires quick thinking, resourcefulness, and combat skills. She encounters other survivors, including Mayuko Nise, a mysterious and skilled fighter who becomes a key ally. Together, they navigate the perilous landscape, uncovering the rules and mysteries of the world. The skyscrapers are connected by precarious bridges, and the environment is filled with traps, puzzles, and deadly challenges. The survivors must also contend with the psychological toll of their situation, as trust becomes a scarce commodity.

As the story progresses, Yuri learns that the world is governed by a sinister entity known as the "Sky Building God," who orchestrates the deadly games for their own amusement. The Masked People are revealed to be former participants who have succumbed to the system, losing their humanity in the process. Yuri’s determination to escape and uncover the truth drives the narrative forward. Her resilience and refusal to give in to despair set her apart from others, making her a central figure in the struggle against the system.

The manga explores themes of survival, morality, and the human will to resist oppression. Yuri’s journey is marked by intense battles, alliances, and betrayals, as she confronts both external threats and internal doubts. The story delves into the backstories of various characters, revealing their motivations and struggles, which adds depth to the narrative. The setting, with its claustrophobic and oppressive atmosphere, heightens the tension and stakes of the survival game.

"High-Rise Invasion" combines action, suspense, and psychological drama, creating a gripping and fast-paced narrative. The manga’s exploration of human nature under extreme conditions, coupled with its intricate world-building, makes it a compelling read for fans of survival and thriller genres.