“Plum Authenticity Twist” was a unique skill of a renowned appraising master in the 1900s. It was rumored that as long as the master took some actions upon himself, the master could literally identify the authenticity of any antiques and famous paintings.

Nowadays, there were only a few people who knew of that technique. The reason Rosalie Naiwell knew that was because of the fact that her grandfather from her family knew of that technique too. However, Senior Naiswell had promised the pers