26 parts Complete The Space Between Stars tells the heartfelt story of Ryojin, a young man struggling with his own sense of purpose. When he meets Hana, a widow raising her 2-year-old son, Sota, alone, he feels an overwhelming sense of responsibility to help. Without asking for anything in return, he dedicates himself to their well-being, leading to a deeper connection with both Hana and Sota. Ryojin's selflessness, however, leads him to sacrifice his own future, eventually dropping out of university and isolating himself from the world.
Despite his personal hardships, Ryojin continues to watch over Hana and Sota from the shadows. But as his emotional turmoil intensifies, the bond he shares with them grows stronger, and his devotion reaches its breaking point. The series explores themes of sacrifice, love, and healing, as Ryojin and Hana work through their pasts and build a future together.