You are the ruler of your dark world (Like how Ralsei is the Ruler of Castle Town), made to defend your dark world so you remain existing

Though you have no subjects, that's fine, you were still there, weren't you...-W E R E N T Y O U?- Of course you were!!

One day, whilst you were in your castle, you heard people outside, peeking out, a human... A monster, and a darkner

Kris: "..so this is the place?"

Ralsei: "Yes, the fountain should be in there..."

Susie: "Yo! Is anyone in that sick ass castle!!"