Kobayashi just can't focus—not on studying, not on work—and the adults in his life think he's in danger of becoming a worthless dropout. Then, one day, a strange new presence arrives in his class: an energetic and naïve kid named Uno. Kobayashi saves Uno from getting scammed, and that close encounter launches a new friendship. Uno's definitely a space cadet, but Kobayashi can't help admiring the way he floats through life, and before he knows it, he might start feeling his feet lift off the ground, too...

Kimi to Uchuu wo Aruku Tame ni won the 17th Manga Taisho Award in 2024. The manga ranked first in the 2025 Kono Manga ga Sugoi! in the Male Readers division. It was nominated for the 49th Kodansha Manga Award in the General category in 2025.

The series has been published digitally in English as Spacewalking With You through K Manga. The volumes have been published by Kodansha USA since May 27, 2025.