Cassio Series 1: Falling Star

Agent A3 or known as Alexa Alliah Aleejah Montreal is the youngest daughter of Agent 666 or known as Mr. Alejandro Cañoza Montreal and his wife Mrs. Belinda Schemetzer-Montreal, the Mafia Queen of Schemetzer Organization in Europe. She's a doctor and at the same time an agent slash a reserved military army. And on the other hand-Marcus Kim. The main singer and oldest in the group of CASSIO. A K-pop group that known all over the world.