is a Japanese manga series written and illustrated by . It was serialized in Kodansha's manga magazine Good! Afternoon from April 2020 to June 2023, with its chapters collected in six volumes. A television drama adaptation aired from April to May 2023. An anime television series adaptation by Asahi Production aired from April to June 2023.
Ichiro Kuga, a struggling manga artist, unexpectedly becomes the guardian of his younger siblings after their father's death. To support them, he rents out rooms in his apartment complex and works tirelessly on his manga. Facing low sales and looming deadlines, his situation seems dire until Shiori Goshiki, a talented novice artist, becomes his assistant. Together, they navigate the challenges of the industry. However, their lives take a strange turn when a supernatural incident leads Shiori to declare them engaged. Now, Ichiro must balance his new relationship with Shiori while managing his responsibilities and pursuing his passion for manga.
Written and illustrated by , A Galaxy Next Door started in Kodansha's manga magazine Good! Afternoon on April 7, 2020. The series finished on May 6, 2023; an epilogue chapter was published on June 7 of the same year. Kodansha collected its chapters in six volumes, released from November 6, 2020, to July 6, 2023.
In June 2021, Kodansha USA announced the English release of the manga in North America. The six volumes were released from April 26, 2022, to May 14, 2024.
In January 2023, television drama adaptation was announced, with Yoshihito Okashita, Izuru Kumasaka, Masayuki Kokuryà  serving as directors. It was broadcast for 32 episodes on NHK from April 3 to May 25, 2023.
In April 2022, it was announced that the series would receive an anime television series adaptation. It is produced by Asahi Production and directed by Ryuichi Kimura, with scripts written by Gigaemon Ichikawa, and character designs handled by Fuyuka à Âtaki. The series aired from April 9 to June 25, 2023, on Tokyo MX and BS11. The opening theme song is by Chinatsu Matsumoto, while the ending theme song is "Near Stella" by Yà « Wakui.
The series has been streamed by Crunchyroll outside of East Asia. Medialink licensed the series in Asia and Oceania (except Australia and New Zealand) and streamed it on the Ani-One YouTube channels.