Chikage is a 31-year-old office worker who is unconfident with herself and embarrassed for never having a boyfriend. With an experimental drug, she can change into her 15-year-old self for 5-6 hours and names her alter-ego Akari Deguchi (出口あかり). As Akari, she becomes an idol.

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 humiliated 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!
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(Source: Viz Media)