Fallen Sun of Lies

Our story starts with a hero, Leesoo, and ends with a villain, Aiko's. In this world there are two things. The protecters (heros) and the corrupt (villlians). From an event that occurred three years ago, Leesoo has a driving force to find the villain from then and get revenge for the death of his father. Little does he know that that very person he was assigned to go undercover on was the very person he had been searching for. Aiko. While Leesoo is being led to believe by his superiors and his past that Aiko is the baddest of all the villains before him, Lee(Leesoo) doesn't know is that Aiko's family used to work with the agency HL, that trained these so-called heroes and that those same superiors were the reason why Aiko's family was murdered. Since 14, Aiko has kept a deep hatred for the heroes who killed his family and has a strong vengeance in his heart. The problem is that over the years his vision has been blinded by that hate and that hate has lead him to believe that the best way to get revenge is to kill the Agency by their roots. The heroes. After Lee starts digging deeper to uncover this mystery, Aiko and Lee's paths start to intertwine once again. Will Leesoo be able to uncover the secret of his superiors, save the world and Aiko? Or will the superiors convince Lee to kill Aiko in order to save their past?