Iisang paaralan at mayroong iisang kaibigan pero dalawang magkaibigang personalidad. She is doing her best to become a better person because it is her mission while He is doing his best to become a worst person because it runs through his blood. She focus herself to become a servant in the church and become a nun someday while He focus himself to become a leader in their gang and become a future mafia boss someday. What if these two persons with different personalities came into different world collided? Will it be a total disaster or they will prove that the opposite attraction exist? Will she will really become a nun in the future and do her mission...? Will he become a mafia boss someday?