You are one of the sons of Glory Church. However, children here are not ordinary children, but children who are designed to be human weapons. all children are taught how to kill well.

There are 3 absolute rules in Glory Church

1. Must obey parents
2. It is forbidden to kill without parental consent
3. ignore the two rules above if your parents are threatened

Until one of the members of the Glory Church goes missing, his name is Sean and you become one of the children who has to pick Sean back 'home'.

You go to a school in Korea. Where is Sean located.