Cosplay-Transmigrated Beibei

"The soothing mist of the hot springs will help you relax, body and soul. The breathtaking view of Mount Fuji will be a feast for your eyes. XX Hot Spring Inn welcomes you!"

"Honey, what do you think this is?" A young woman, around thirty, pointed to a corner of the inn room.

"Once you connect this switch to a power source and press it, something truly amazing will happen!" The chubby man keenly spotted a note tucked under a switch that looked completely ordinary. It looked just like a regular light switch, with only a button and nothing connected to it, except that it had a plug attached.

The young man looked around and spotted a power outlet that would work. He turned to his young wife and said, "There's an outlet here. We can try it out."

"Officer! Please help me! My wife has disappeared. I can't find her anywhere!"

The chubby man looked panicked as he rushed into the police station at the foot of the mountain, startling the rookie officer inside.

A slender, delicate hand picked up a poster that had fallen to the ground. Its owner wore what looked like a tattered white cloth draped over their body. Their figure seemed to belong to a boy, but the cloth obscured their appearance. Through its holes, one could just make out golden hair and eyes as clear as a green lake.

"Young one... I don't know where you came from, but meddling in other people's business can get you into trouble, you know?" A folding fan concealed the corner of a dazzlingly beautiful mouth.

Premise: Growth.