”CSR (First Love)” is already a 19-year-old group...Today they make a comeback with their new album ”L'heure Bleue: Prologue”

Girl group CSR (First Love) will break the void today. CSR will release their new single "L'heur" on various music platforms at 6 pm today (11th).
"CSR" is a team made up of students born in the same year in 2005. They debuted in July 2022.
"L'heure Bleue: Prologue" is the first new album that CSR will release in one year and three months. The members have suddenly turned 19 years old.
"Bleue: Prologue" announces the beginning of a musical series themed on the age of 19.
"Bleue" is a French word meaning "blue hour," referring to the time when light and darkness alternate between early morning and dusk.
It means time. The management office, CSR E&M Inc., said, "CSR will unfold the story of growing up at the transitional age of 19."
After completing their comeback activities, CSR plans to release their debut album in Japan sometime in July.