He is investigating a castle when he spies a figure in his viewfinder. Having caught his interest, Kouhei decides to enter the castle to try and find the figure that he saw. What he finds is a vampire whose intent it is to make him a slave and thus gain freedom from the castle by giving him the vampire’s kiss – in other words, biting his neck for blood to put him under their spell. The other occupants of the castle do not wish for the vampire to leave the castle, and a conflict ensues, with the final outcome being that the vampire does get freed and ends up going to Japan to be reunited with Kouhei.