Urban: I Swap Bodies with My Senior Schoolmate from the Start

My name is Yamashiro Hajime, and I'm an ordinary high school student.

Today is December 24, the day before the birth of Jesus Christ. Couples go on sweet dates, friends and relatives meet up for meals, and children look forward to getting presents.

It's a wonderful day filled with excitement, when people plan to enjoy both love and desire.

At least, that's how it should be.

That's how it was supposed to be...

But aliens arrived out of nowhere and turned everything upside down.

I ended up switching bodies with the senpai I like most???!!!

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Please do not imitate.