Ninjas have nightmares. It wasn't talked about, they didn't teach it to you in the academy. It wasn't listed as a job hazard. There weren't classes designed to help you when you wake up sweaty and shaky in the dead of night. It was simply another thing ninjas had to deal with.
Many years ago, the wind tribe overthrew the sky tribe and became the ruling tribe of Kouka. The reluctant prince Hak and charming bodyguard Yona lives are irrevocably changed from this event that happened years before either of them were born. Chased from his castle, with only Yona to help him, what will become of Prince Hak?
The descent into insanity was slow and painful. But maybe he wasn't going insane. Maybe the girl he loved, the girl he killed, really was there. That was slow and painful too.
As far as a place for a first kiss goes, well... Yeah, a cellars pretty bad.
As far as dying goes, well, he supposed this was one of the better ways to kick the bucket.