Akira Sakagami has secretly harbored a one-sided love for someone since elementary school, up until her current second year of high school. That person is her childhood friend, Satoru Kishitani.

She was close enough with her best friend, Haruna Uchimaki, to confide even such matters. Or so she thought.

Then one day, she discovered the relationship between Satoru and Haruna.

This is a story of flirtatious revenge (イチャイチャ) where Akira, with an accomplice, returns the betrayal to get her own back for the foolish pure love she had fostered in the past.

※Completed on August 10, 2024! Thank you for your support! (Added August 10, 2024)

※Also posted on Kakuyomu, AlphaPolis, and Nola Novel.

※The protagonist is about to do something that is generally considered inappropriate, so if you are concerned, please refrain from reading and use your browser's back button.

※Titles such as "My Kissing Practice Partner Is~," "My Childhood Friend Betrayed Me, So~," "Double Lovers~," and "In My Do-Over Life~" are set in the same regional city. Related characters sometimes make an appearance. (Added December 2, 2024)

※Bonus chapters are being added; updates are irregular. (Added January 30, 2025) ← The bonus chapters have also been completed! (Added September 11, 2025)