"Can I make the future I chose the right answer? Can we make the future we chose the right answer...?"

Option I: Retain the physical youth and beauty of an eighteen-year-old, reaching the end of life at age forty-five.
Option II: Age naturally as before, living to ninety.

With the establishment of the "Selection System," women are mandated to choose between Option I and Option II upon turning eighteen.

Satsuki, whose mother is an actress symbolizing Option I, aspires to follow in her footsteps. Her best friend, Ririi, longs to become an idol.

"Someday, let's both reach the top of our fields!"

Though the two friends playfully share this dream, their lives begin to diverge from the moment they make their choice.

Boldly confronting an ultimate dilemma, this novel represents both a culmination and a new frontier for the author of Please Form Pairs.