Q:Shinmai Maō no Testament -  Shinmai Maō no Testament (新妹魔王の契約者 Shinmai Maō no Tesutamento officially translated as The Testament of Sister New Devil) is a Japanese light novel series by Tetsuto Uesu with illustrations by Nekosuke Ōkuma. Four volumes have been published by Kadokawa Shoten since 2012 under their Kadokawa Sneaker Bunko imprint. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Written Work