Of Castles and Koi-men [A GerPan Hetalia RP-fic]

Ludwig, a simple German man who can't speak a word of Japanese, is sent to Japan on a business trip -- Only to come across a castle with a twisted mistress, who just so happens to keep a koiman in a pond in the courtyard. Is it possible for the koi (Kiku) to escape his bindings with Ludwig, or will they be stopped in their tracks by the mistress of the castle?
((Guffle-kun knows he sucks at summaries. This is just an RP I'm doing over Skype with a friend, nothing special about it. No sex in here, so be free and fly youngunns!))