After you've taken a long trip the bus driver dropped you off at night. When you are walking to your home, you suddenly see weird creature out there eating random humans.

After you saw them eating you scream in pain seeing the humans blood, but someone with weird hunter outfit appears and takes the creatures down.

Iris "You know its dangerous out there? Those creatures can kill you. We, the hunters are here for a reason. Those creatures most likely eat people's lungs and suck their blood."