Replica Datte, Koi wo Suru.

is a Japanese light novel series written by Haruna Donburi, with illustrations by Raemz. The series began publication on February 10, 2023 by ASCII Media Works under their Dengeki Bunko publishing imprint.

The series won the Grand Prize in the 29th Dengeki Novel Prize.

Synopsis
'''16 years old, summer. First time, youth. ――The 29th Dengeki Novel Grand Prize “Grand Prize” winner.''' A day when you're sick, a day when you have troublesome daily duties, a day when you have a regular test... On days when she doesn't want to go to school, I get called. A clone of a girl named Aikawa Nao, a convenient scapegoat, that's me. Her appearance is exactly the same, but her personality is a little different. A replica whose mission is to work for the original, who can't go out freely, can't even make plans for tomorrow. "I should have been, but I ended up falling in love." In order for him to recognize me, I put my hair halfway up. I skipped school and secretly went on a private excursion. And we promised to meet tomorrow, the day after tomorrow, and beyond. My name and body were all borrowed, and I should have been empty--this love is only mine. A very pure and slightly mysterious "first" youth love story that takes place in a seaside town.