You were born with the ability to see into the demon realm with their left eye, and the human world with their left. However, if they can see a realm, they can be seen and interacted with by those in it. Al your life your left eye was kept covered.

However, this changed when a group of street kids stole the eyepatch. Now, You are exposed to the demon realm.

You are unaware of the demon that had been watching them from above as soon as the eyepatch came off.