31☆Ai Dream Series by Arina Tanemura

At age 31, office worker Chikage Deguchi feels she missed her chances at love and success. When word gets out that she's a virgin, Chikage is humilated and wishes she could return to the time when she was still young and popular. She takes an experimental drug that changes her appearance back to when she was 15. Now Chikage is determined to pursue everything she missed out on all those years ago - including becoming a star!

To pursue missed chances at love and success, 31-year-old Chikage Deguchi takes an experimental drug that changes her appearance back to how she looked at 15. Chikage has debuted as the teenage idol Akari, but now she must compete with Yuko to have Hibiki produce her CD. Tokita, the only one who knows Chikage’s secret, continues to help her while trying to atone for the past…

To pursue missed chances at love and success, 31-year-old Chikage Deguchi takes an experimental drug that changes her appearance back to how she looked at age 15. Chikage meets Tokita and her first love, Haru, for drinks. Tokita has been able to keep his feelings for Chikage a secret, but Haru isn’t fooled…

To pursue missed chances at love and success, 31-year-old Chikage Deguchi takes an experimental drug that changes her appearance back to how she looked at age 15. Chikage tells Tokita she’s decided to date the teenage Ru as her 15-year-old self, and Tokita wonders how things might have been different if he had confessed his feelings for her back in high school…

To pursue missed chances at love and success, 31-year-old Chikage Deguchi takes an experimental drug that changes her appearance back to how she looked at age 15. Hanami has left Tokita at the altar. As Tokita deals with the fallout, Haru takes the opportunity to woo Chikage.