"2001 Ya Monogatari" is a manga series written and illustrated by Moto Hagio, serialized in the 1970s. The story is set in a dystopian future where humanity has colonized space, and Earth has become a desolate, uninhabitable planet. The narrative explores themes of survival, identity, and the consequences of technological advancement.

The protagonist, Tadao, is a young boy living on a space colony. He is part of a group of children who were genetically engineered to possess enhanced physical and mental abilities, known as the "Newtypes." These children are raised in isolation, trained to adapt to the harsh realities of space colonization. Tadao, however, struggles with feelings of alienation and a longing to connect with his origins on Earth. His journey is marked by a search for meaning and belonging in a world that views him as a tool rather than a human being.

The plot unfolds as Tadao and his peers are sent on a mission to Earth, now a barren wasteland, to investigate the possibility of reclaiming it for human habitation. During their expedition, they encounter remnants of Earth's past, including abandoned cities and forgotten technologies. These discoveries force Tadao to confront the ethical implications of humanity's exploitation of the planet and the moral dilemmas surrounding their own creation.

Key characters include Tadao's fellow Newtypes, each with distinct personalities and abilities. Among them is Akira, a fiercely independent and pragmatic individual who often clashes with Tadao's idealistic nature. Another significant character is Dr. Shima, the scientist responsible for the Newtypes' creation, who serves as a mentor figure but also embodies the ethical ambiguities of their existence.

The narrative delves into the psychological and emotional struggles of the Newtypes as they grapple with their purpose and the expectations placed upon them. The story also examines the broader societal implications of genetic engineering and the potential for dehumanization in the pursuit of progress. Through its exploration of these themes, "2001 Ya Monogatari" presents a thought-provoking commentary on the human condition and the consequences of technological and scientific advancements.