Uno Sawako lives a quiet life out in the countryside with her three sons and mother. Seems her husband has run off on her, but Sawako's determined to keep moving forward with a smile. One day she nearly runs into a handsome young man standing in the middle of the road, where he promptly collapses. Taking him home and finding out he has amnesia, Sawako determines to take advantage of that and turn him into her new husband, whom she names "Hoshio" or "Starman.

Sawako goes out on a date with Hoshio and tells him the story of how they met. Before that though, Hoshio struggles with both his lack of memory as well as his lack of skills.

Sawako finds the strange woman who has invaded her home has some connection to Hoshio, forcing her to come clean about all her lies.

Sawako's runaway husband returns to make a difficult situation even more so; meanwhile Hoshio decides he needs to do more to be a father. Shoko sets up a communication device aimed at the stars, but she seems to be communicating with people closer by...

Hoshio's change of personality provides Sawako with yet another challenge... but she might end up wishing for the old Hoshio instead.

Hoshio is getting along well with his new family, but he's beginning to realize he may not be the only one in his body. Meanwhile Sawako worries that what's happening may be too good to last while Shoko expresses her feeling to Shigeta...

Hoshio and Shigeta try to explain everything to Sawako and her family, but Sawako has more personal issues on her mind. Meanwhile Shoko insinuates herself into Shigeta's family; much to his consternation.

While Sawako learns about what it's like to live with a space alien from Shigeta's wife, Hoshio and Shigeta talk about life on Earth.

Hoshio gets a job and finds himself having to use his powers to save a coworker. In the meantime, Sawako finds herself in the middle of a fight at her own work that may expose one of the aliens among her. But that distraction is set aside when it appears that her oldest son, Dai, may have run away from home...

Hoshio and the other aliens get a visit from space, but it turns out not to be quite for who they expected. Just as Sawako and Hoshio's relationship seems to have found its groove at last, a new and surprising distraction comes along that will change both their lives..