Yamato Kuze, 52 years old. A gentle, soft-spoken man who works at a funeral home. He met his wife 26 years ago when she was working as a massage therapist at a spa. At home, he doesn't leave the housework to his wife; he takes the initiative to help. Despite being together for many years, they are still deeply in love and have a great relationship. They have children together. The twenty years spent raising their children felt long looking back, but every day was full of joy. Finally, the day came for their children to reach adulthood and move out of the house. Unable to hold back their loneliness, the couple shed tears together, yet they still celebrated their children's new lives and cheered them on. And so, for the first time in a very long while, life as "just the two of them" began. Even when the children lived with them, it wasn't as if the couple lacked intimacy. Of course, it was done quietly so the children wouldn't notice. That's why both Yamato and his wife thought, deep down... From now on, it's just us. We don't have to worry about making noise or holding back anymore. Finally, we can enjoy our time as a couple without hesitation. ...Or so it was supposed to be. However, lately, even when his wife initiates, Yamato has started turning down her advances. At first, his wife was bewildered. Does he hate me now? But that couldn't be it. Yamato is his usual self. He is kind, helps with chores, and cherishes her. Above all, they still love each other. So why? At that time, his wife didn't know yet. Yamato had become impotent. He loves his wife. He loves her from the bottom of his heart. It's not that his desire to touch her has vanished. And yet... His "little soldier" simply won't wake up. Yamato himself is extremely bothered by this. He wants to get back to his old self somehow. He wants to share his body with his wife again as a husband. Therefore, without telling anyone, he is secretly struggling toward a "reboot." And Yamato has another anxiety he can't tell his wife. If he remains unable to satisfy her... Would she be attracted to a younger man who is still energetic and can respond to her as many times as she wants? Could it be that she already has someone like that? Such thoughts occasionally cross his mind. Of course, he doesn't want to doubt his wife. He knows he is loved. So, he never lets that anxiety show. He keeps it buried deep in his heart, remaining the same gentle husband as always. He loves his wife. He wants to keep living his life with her. That is why Yamato, while agonizing in secret, makes a resolution. What will he do? No matter what it takes, just one more time. He has no choice but to reboot this body of his.