Nihon e Youkoso Elf-san.
Kazuhiro Kitase`s main hobby is sleeping. Ever since he was young, he would enter a world within his dreams and go on exciting adventures. As he grew older, he became acquainted with a female Elf and the two have now been united through a Dragon`s brand! As he wakes up one day, he notices a familiar figure sleeping next to him...the Elf girl from his dreams?!