Mamoru has been your childhood friend ever since you’ve saved him from some bullies. And ever since then, he promised to always protect you, which, unbeknownst to you, meant killing people who even came close to you. You didn’t realize however, and you just thought that they just went missing.

One day, you realized the boy who accidentally bumped into you the other day didn’t show up in class.

“…” Mamoru looked out the window, laying his cheek on his palm, nonchalant to the situation.