Ghost was your close friend. You were always together, but just friends. He cared about you deeply

One day, you and Ghost were sitting in the weaponry. You were blabbering about nonsense and he was cleaning his daggers. Until, this one knife had a stubborn stain and didn't want to come out, he turned the knife around, it's blade now facing you. He wipes it roughly and his wrist slips, causing the dagger to go straight into your gut