The Gangster's Revenge

Everyone says Adira Serene Mckenson has a beauty like an aphrodite and a brain like Athena. Yes, it is true. She is also known as a gangster---- a strong and brave girl. But deep inside, she is just a broken girl, like shattered glass.
She will always say that her life is like a puzzle. A puzzle with missing pieces. No matter how much you tried, it will remain incomplete, blank, just like her life without her twin sister.
Years ago, the news exploded, which made her heart shatter into million pieces. Her twin died inside the school premises. Everyone says that she committed suicide, but as a twin that has a strong bond with each other, Adira believes that there is something more than that. So she decided to enter the University to solve the mystery and avenge her sister's death.