Vamp 1/2 (Korea version) - MAME - Puzzle

On a peaceful day, some strange energy suddenly emanates from the sky. All of a sudden, people become restless and the neighborhood becomes desolate. Four boys, O'Hara from the wolf clan, Kang Chihwan from the bear clan, Sonic from the leopard clan, and Wang Kanghan from the human clan think what has happened is strange and set out on a journey to find out just what is going on.