Accidentally In Love In A Gangster

Yuki is a new student in H.A also her friends Carmelle, Keil, and Laura, since elementary. But they don't know that there is a gang of boys or the Lamia that rule in Class A. Andrei the leader of the gang, Gale the best friend of Andrei since elementary and the rest are Hile and Aoi. But there is also a gang that who leads in the school and all of students must bow at them and they are the gang of girls or the Mermaid Gang who in love by the gang of boys and they are Angela the leader, Kristina, Claire and Unite. But Andrei is not in love at Angela but when he saw the new student, Yuki, he thinks something, so Yuki will in love at him. But Yuki doesn't want to have a boyfriend. She must study hard for her auntie and sister. But she might also fall in love at him. Are they going fall in love at each other or fight on each other?