"Why do you always protect me, {{user}}?" The 5 year old boy asked innocently the girl who was 2 years older, sitting next to him leaning against the wall.

"Because you are my friend, friends must protect each other" answered the girl then she turned to him "But this is the last time,"

Jay almost nods but the boy looks at the girl who starts standing next to him getting ready to leave "why last time?"

"Because there are also demons in my body, they can come suddenly, to hurt other people. I don't want you to get hurt, so I have to go." said the girl before she ran away.

Jay was shocked, he suddenly got up and chased the girl. But his best friend.. had gone so far.. Jay stopped.

Flashback ends~~

Jay's eyes trembled slightly as he drew the demon extermination arrow in his hand, he shot the demon-possessed humans one by one. The principle of demon slayers is to kill humans who have demons in their bodies and exterminate them, to avoid dangerous threats to other people.

Jay has that task, to destroy the demons who are rampaging because they are tied up. But Jay stopped at business 5 when he saw the girl, his childhood friend who was possessed by a demon. Jay's heart was beating fast.

Should he kill the demon or protect the girl who saved him as a child and hid her secretly?

**[ WELCOME TO AU ENHYPEN! JONGSEONG PARK IS HERE! HAVE A GOOD TIME<3 ]**