Releases

Season 1
A Sister's All You Need
Imouto sae Ireba Ii.
2017-10-08 to 2017-12-24
12 episodes (24 minutes)
Comedy, Ecchi, Romance, Slice of Life
SILVER LINK.
ONA
A Sister's All You Need Specials
妹さえいればいい。
Imouto sae Ireba Ii. Specials
2017-10-09 to 2018-03-23
8 episodes (2 minutes)
Comedy
SILVER LINK.
Special
○○さえいればいい。(Special)
Marumaru sae Ireba Ii. Specials
2018-01-26 to 2018-03-23
2 episodes (2 minutes)
Comedy, Slice of Life
SILVER LINK.

Sources

Novel
A Sister's All You Need.
妹さえいればいい。
Imouto sae Ireba Ii.
Yomi Hirasaka - Story
Kantoku - Art
2015-03-18 to 2020-02-18
206 Chapters
14 Volumes
Manga
妹さえいればいい。@comic
Imouto sae Ireba Ii. @comic
Edo - Story & Art
Yomi Hirasaka - Original Story
2015-12-19 to 2019-07-19
48 Chapters
9 Volumes