The Planet Group is comprised of influential families who represent each planet in our solar system, as well as the central Sun Family. Midori, the Earth Family's eldest son, has recently started high school at the Planetary Academy but aside from his family name, he lacks confidence due to his poor grades and social awkwardness.
To make matters worse, his father and younger brother openly look down upon him, hoping he won't tarnish the family's reputation by drawing attention to himself. However, Midori is pleasantly surprised by the compassion shown to him by his fellow Planet students, especially Yuudai Jupiter, who takes him under his wing on their first day.
As Midori navigates through school, he wonders if attending the Planetary Academy will ignite a transformation in his life, or if his prospects are truly fruitless.
