Three years into marriage with my wife Marina, I'm once again preparing to move due to a job transfer. We've entrusted the move to my senior from college, Mr. Ozawa, who runs a moving company, and together as a couple we've been getting ready. While packing, I gently told the hardworking Marina to take a break, but she gave me a somewhat dissatisfied look. After that, ever since she and Mr. Ozawa rode together in the truck's cargo bay, her attitude toward me grew distant. Then, on the morning of Marina's birthday, I hid inside a cardboard box as part of a surprise—only to witness a shocking scene unfold before my eyes.