A spin-off may be called a '''sidequel''', a [[portmanteau]] of "side" (as in side-by-side) and "[[sequel]]", when it occurs in the same time- frame as the original, sometimes contacting with the main narrative at points.<ref>{{cite web |date=December 4, 2006 |title=sidequel |url=http://www.doubletongued.org/index.php/citations/sidequel_1/ |url-status=live |archive-url=https://web.archive.org/web/20131225165633/http://www.waywordradio.org/sidequel_1/ |archive-date=Dec 25, 2013 |access-date=2014-01-28 |website=Double-Tongued Dictionary |publisher=A Way with Words}}</ref> In [[Japanese language|Japanese]], the word {{nihongo|'''''gaiden'''''|外伝||{{IPA-ja|ɡaideɴ|pron}}, lit. "outside legends"}} also refers to such contemporaneous spin-offs and is frequently translated as "side story".<ref>References for the translation of {{lang|ja-Latn|gaiden}} as "side story": {{bulleted list |{{cite web |title=Tokyopop Snags ''Gundam Seed Astray'' Manga: A 'Side Story' Based on the Popular Anime Series |url=https://icv2.com/articles/comics/view/4041/tokyopop-snags-gundam-seed-astray-manga |website=[[ICv2]] |access-date=February 1, 2021 |date=December 21, 2003}} |{{cite web |last1=Pineda |first1=Rafael Antonio |title=''Violet Evergarden Gaiden'' Side Story Anime's Trailer Reveals Cast |url=https://www.animenewsnetwork.com/news/2019-08-13/violet-evergarden-gaiden-side-story-anime-trailer-reveals-cast/.150000 |website=[[Anime News Network]] |access-date=February 1, 2021 |date=August 13, 2019}} |{{cite web |last1=Baron |first1=Reuben |title=''Sekiro Side Story: Hanbei the Undying'' Is A Solid Stand-Alone Spin-Off |url=https://www.cbr.com/sekiro-side-story-hanbei-the-undying-manga-review/ |website=[[Comic Book Resources]] |access-date=February 1, 2021 |date=July 11, 2020}}}}</ref>
