Shinnosuke Nohara Age: 5 Gender: Male A carefree, innocent boy with a buzz cut. He has a huge weakness for beautiful older women. He travels to the future with Tamiko. Toru Kazama Gender: Male A member of the Kasukabe Defense Force and Shinnosuke's friend. An elite student whose dream is to work for a top-tier corporation. Masao Sato Gender: Male A member of the Kasukabe Defense Force and Shinnosuke's friend. He's a crybaby but comes through in a pinch. His dream is to be a manga artist. Nene Sakurada Gender: Female A member of the Kasukabe Defense Force and Shinnosuke's friend. She's outspoken and always carries a stuffed rabbit. Her dream is to be an actress. Bo-chan Gender: Male A member of the Kasukabe Defense Force and Shinnosuke's friend. His hobby is collecting stones, and he always has a runny nose. His dream is to become a stone.

Future Shinnosuke Age: Unknown Gender: Male Tamiko Kaneari's husband. They are very close. He is a handsome man who is extremely popular with women.

Tamiko Kaneari Age: Unknown Gender: Female Future Shinnosuke's wife. They are very close. She calls him "Shin-chan-san." She takes 5-year-old Shinnosuke to the future to save his future self. Masuzo Kaneari Tamiko's father. He is opposed to her marriage to Future Shinnosuke.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko. She is bright and energetic.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko. She has a frank, no-nonsense personality.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko.

A member of the "Brides-to-be" Army hired by Masuzo. She aims to take the position of Future Shinnosuke's wife and tries to eliminate Tamiko. She can be foul-mouthed at times, but she is very maiden-like at heart.