Vengeful Assassin (Strongest Assassin)

What would you feel if your loved ones got murdered while celebrating a special day right in front of you? Our protagonist named Eu was abandoned at the age of eight. His family were killed by the authority. To take over their state the regime were killing those people who do not want their leadership. He aims to become the strongest assassin by cultivating his skills to achieve his dream of defeating their government and avenge his murdered family and to protect those vulnerable people. His mission is to enter into the famous school in their country owned by their administration and to study the system how they can overthrow their president to end the chaos in their nation. Come and join me to kill those bastard who are abusing their position to kill the innocent people.