When My Doorbell Rang at 5am, I Got a Wife - Chapter 16: "The principle of proportional in Isekai"

Chapter 16: “The principle of proportional in Isekai”

“Next, I’d like to give a little more in-depth explanation about our ‘reverse isekai transfer’ to this Earth world.”

Erika said, having fully regained her energy after drinking tea and relaxing for just a few minutes.

“Well, if possible, could you explain it in a way that’s easy for a humanities major to understand?”

“Well, to put it simply, my transfer to this world is a kind of ritual to stabilize the power balance between worlds.”

“Power balance between worlds? What’s that?”

“This Earth world is a place where a lot of people are reincarnated and transferred to other worlds.”

“Huh? Isn’t that just a story in manga and novels?”

“Because it actually happens a lot, there are also a lot of books and documents about it. This is called the ‘principle of proportional other world transfer’. It’s the very basics of other world transfer studies.”

“Hmm, I see, there’s such a thing.”

Erika really has learned a lot at the other world transfer and reincarnation specialist school.

To be honest, when an expert explains something using specialized terms, ordinary people feel a strong sense of conviction just from that.

It’s like they’re already being overwhelmed by the “amazing atmosphere” that experts have before the explanation even begins.

“And because the outflow from this world to other worlds is overwhelmingly large, this world has greatly reduced its total energy, which should be balanced, and is now in a very unbalanced state compared to other worlds.”

“I see, I kind of get what you mean. Because people are constantly leaving this world, the balance between worlds is being tipped.”

“That’s right. And recently, the outflow to other worlds has become so excessive that it has placed a great strain on the world’s mechanisms.”

“That’s right, if people keep leaving this world, that’s what will happen.”

“And all that strain is being borne by the core world of Di Maria, which is the center of all the worlds. By transferring a high-energy world priestess like me to this Earth world in reverse, we can restore the balance between the worlds and reduce the strain—that was my role.”

“So, at the point when you came to this world, your role was over because the balance between the worlds had been restored.”

“Yes. And at the same time, Tooru also became a hero who saved the world by summoning me.”

“I see, I understand now.”

“I’m glad you understand.”

“I understand, but if that’s the case, then there must be other priestesses like Erika who have come to this world. You can’t restore the balance between the worlds unless you bring back the same number of people who left, right?”

“There was one about ten years ago, but in the last ten years, it’s just me.”

“So the balance between the worlds hasn’t been completely restored yet?”

“No, as an elite priestess who has undergone extremely special training, my world power is equivalent to about 12,000 ordinary transfers and reincarnations, so by coming here alone, I can return a considerable amount of energy to this world.”

“I see, that’s the power of a priestess who has undergone training.”

“That’s right. Tooru, you’re really a person from this world, your understanding of the other world is unusually fast, it’s a big help.”

Erika nodded with a satisfied smile.

But as I looked at Erika smiling like that, I felt a little concerned.

“By the way…”

“What is it?”

“Erika, didn’t you feel sad that you had to go to another world alone for the sake of the world’s convenience?”

After hearing the story so far, the first thing I was concerned about was whether Erika, who had been separated from her family and friends and thrown into another world alone, was lonely or sad.

I had just been told that my workplace had gone bankrupt, and I had suddenly lost all my human relationships and the life I had built up, and I had become unemployed, and I had felt very anxious, thinking, “What am I going to do now?”

So I thought that Erika, who had come alone, breaking all her connections, would be much sadder than me, who was unemployed but still connected to my parents and family.

“Why would I be sad? I was chosen by the goddess and given this honorable role.”

Erika turned her puzzled face towards me.

T/N: Feels bad,fr, for blind believers.