Fully Autonomous Electric Trailer Smart House [1000-Character Short Story #002]

The moment I stepped into the entrance of the compartment, a sound rang out. It was the same as a notification sound on my device, so I started fumbling around my body.

"You're overweight," she said.

Apparently, her vehicle is strictly calculated based on her body weight and the weight of her household goods, optimized so that the battery lasts while driving. It seems the load capacity was already at its limit. To think that she had long since stopped expecting anyone other than herself to step into the compartment.

That day, I temporarily moved books equal to my body weight outside and spent time in her house.
For a while, every time I visited, I had to perform the task of moving books outside.
I made a suggestion. Why not leave the books you don't read at my place? She didn't agree easily. Our current indecisive relationship is somewhat comfortable as it is. Depending on the situation, there is even a part of her that thinks the value of a single book is equal to, or perhaps even surpasses, me alone.

I changed my strategy, repeating the process of borrowing three books and returning two, trying to subtly reduce the weight of her house. Fortunately, her collection contained many so-called "blunt weapon books," and according to my calculations, I should only need to take out twenty or thirty of them.
However, as expected of an eccentric living in a fully autonomous electric trailer smart house, she was secretly buying more books, taking advantage of the fact that I had lightened the load.
I lost my patience, insisted, and forcibly borrowed the entire set of "In Search of Lost Time."
"Whoa, my back is going to give out!"
I said loudly, lifting the super-heavy complete set. I had finally succeeded in removing my exact body weight from her trailer house.
I placed them in the space I had prepared for her library at my home. I gazed at the mass of weight equivalent to one person with a sense of accomplishment.

"Where are you today?" I sent.
She said she had come out to a massive discount supermarket in the suburbs. I had a bad feeling.

As I thought. When she came out of the supermarket, she was holding a giant cabbage, about the size of an elementary school student, the likes of which I had never seen grown or cooked. It seemed she had wanted to try buying one for once.
"Whoa, my back is going to give out!"
She laughed just like an elementary school student.