Nakamura Yuichi was a high school student who stood out from the typical protagonists of Japanese novels.
Yuichi had a girlfriend—not just any girl, but the most beautiful girl in the entire school!
He was a chill, handsome, and effortlessly cool guy.
His family life was also exceptional. With kind and good-hearted parents, siblings, and grandparents, Yuichi's home was a picture of harmony and warmth.
Academically, he excelled as one of the top ten students in his school. On the basketball court, he shone as his team's ace, a truly gifted player.
In short, Yuichi seemed to be living the perfect life. Yet, no one knew the mystery this "perfect" Yuichi was hiding—not just from the world, but from the entire universe. No, it went even beyond that—he was concealing something from the very concept of existence itself.
Except for one person: his girlfriend.