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A Sister's All You Need (妹さえいればいい。 Imōto Sae Ireba Ii.) is a Japanese light novel series written by Yomi Hirasaka and illustrated by Kantoku. Shogakukan has published seven novels since March 2015 under their Gagaga Bunko imprint. Two manga adaptations have been published by Shogakukan and Square Enix. An anime television series adaptation by Silver Link premiered on October 8, 2017.
Nayuta Kani
Miyako Shirakawa
Chihiro Hashima

Itsuki Hashima

Nayuta Kani

Miyako Shirakawa

Chihiro Hashima
Haruto Fuwa
Kenjirou Toki
Ashley Onou
Setsuna Ena
Haruto Fuwa Kenjirō Toki Ashley Oono sSetsuna Ena
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  • March 27, 2018: Imouto Sae Ireba Ii is released world wide.
  • June 22, 2017: Imouto Sae Ireba Ii is released in Japan.
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