The 4 O' Clock Club

The 4 O' Clock Club summary:

Meet Yuno and Rayven, newly stepbrother and sister in a small and isolated town of La Orden. Yuno is the new girl in town. She is finding ways to get used to the conservative ways of La Orden compare to the big city where she came from. But when she meet a new found friend and mysteriously disappears at the night of the dance, she needs to find her while continuously surviving the everyday life...