Actually, I Was the Real Thing (Volumes 1-5) the latest volume)

Publisher: Ichijinsha
Author：yuun,March
Size：128mm x 182mm
Number of books：5
Language: Japanese
Category:Shojo Manga,Cartoon
the latest volumeRelease Date: 2024-05-20

Synopsis:
Kiira grew up as the eldest daughter of the Parvis family, a family of water nymphs chosen by the goddess.
She was obsessed with her father's love and worked hard for 18 years to be loved and accepted,
Cosette appears, claiming that she is the Grand Duke's own daughter and eldest daughter!
That day, Kiira's entire environment changes,
Finally, she is executed as a fake who brings disaster...
However, the day before her execution, Cosette tells her, "Actually, you are the real one.