2014 light novel written by Yomi Hirasaka (writer of [[Boku wa Tomodachi ga Sukunai]]) and illustrated by [[Kantoku]].

h4. External links

* "Wikipedia: A Sister's All You Need":[https://en.wikipedia.org/wiki/A_Sister%27s_All_You_Need]
* "MyAnimeList: Imouto sae Ireba Ii.":[https://myanimelist.net/anime/35413/Imouto_sae_Ireba_Ii/]
妹さえいればいい。 妹さえいればいい 如果有妹妹就好了