Mysterious Flowers

The world has fallen into a whirlpool of crisis, monsters have enveloped the city, and only a genius slayer can resolve the crisis. More and more ordinary humans are turning into monsters. Pollution is about to destroy the world and it is in crisis. What have the monsters experienced? Perhaps this mysterious... Flower that can enter their inner world can bring life to everyone. In order to save the world, what we have to do is to spy on and decipher the cause and effect of all this.