Elda is an elf who was summoned five hundred years ago by Tokugawa Ieyasu, but now she's a serious shut-in. To entertain herself, Elda delights in mail-ordered confectionaries from the web, indulges in traditional games, and receives a visit from an elegant elf named Uramimi-sama. Poor Miko Koito must find a way to rein in her indulgent deity!