He contacts his best friend , who reveals that it was M 's gang who raped Lily and caused her death , and also beat up Ah Xiong .
This infuriates Siao Han , who thirsts for revenge .
Siao Han contacts Siao Han 's best friend , who reveals that it was M 's gang who raped Lily and caused her death , and also beat up Ah Xiong .
This infuriates Siao Han , who thirsts for revenge .