True feelings 

Casper didn't want to tell to her what happened afterward.

After all, if he did so, he would need to tell about how he ended up appearing on that world suddenly. His definitive retirement happened on that same day when he was walking on the streets and going home after a "busy" year at the Yanke Forces.

He didn't like to think about that. Many things could hurt him. He was just a guy, after all. Casper wasn't made of iron. However, what hurt him the most was his past; it felt just like a deep wound that never would be healed by anyone. 

'Maybe I could heal it if I wanted to, but I think I want these wounds here to remember me of the consequences of taking responsibilities that are beyond my power.' He thought although it was an ironic thing. After all, his power was not worth an entire district.