Idol Show Time: Twinkling Memory

It was a time when idols brought hope to people.
Their radiance reaches even the youngest of boys.
A traumatized boy, Setsuna Sakura, happened to see an idol's live performance and was touched by the brilliance.
Longing to be an idol who is adored by others, Setsuna decided to audition for an idol agency to make his dream come true.
This is the story for those of us who want to shine as much as we can in our limited time.
(Source: Ura Sunday, translated)
Note: Includes 1 extra chapter.