The first three episodes feel like corporate orientation videos, all documentary narration and world-building scaffolding. Then it pivots. The show stops explaining Mars and starts using it as cover for something darker, where a teacher's loyalty to his students costs him everything, where romance becomes collateral damage in a political game nobody signed up for. Stick past the boring setup and you get a show that knows exactly when to detonate its own premise.

In a future where humanity has settled every planet in the solar system, high school students in Fourth Tokyo on Mars earn salaries while they study. Iris Shirasaki is a third-year training as a test pilot, and her friend Mizuki Sera works as a mechanic on the aircraft. Mizuki's older brother Kaito is both their homeroom teacher and the young director of A-TEC, the Kirishina Corporation's aerospace development class. Their anticipated new classmate turns out to be Nagisa Kiryuu, the CEO's younger brother, who arrives as A-TEC's new chief with orders to close the program. Kaito and his students race to build a successor to their X-2 rocket, while Nagisa pursues his own goals inside the company. The result is a sci-fi romantic comedy laced with corporate intrigue.