Seasons and episodes
1Season 1 Oct. 08, 2017
1 - 1
1 - 2If Only a Miracle Would Happen Oct. 15, 2017
1 - 3As Long As It's For Research Oct. 22, 2017
1 - 4As Long As You're Working. Oct. 29, 2017
1 - 5All You Need Is to Write Novels. Nov. 06, 2017
1 - 6Having Your Media Developments Go Well Is All You Need. Nov. 13, 2017
1 - 7Adventure Is All You Need. Nov. 19, 2017
1 - 8All You Need Is Love and Friendship. Nov. 26, 2017
1 - 9Nudity and Underwear Are All You Need. Dec. 03, 2017
1 - 10A Lack of Problems Is All You Need. Dec. 10, 2017
1 - 11Becoming the Protagonist Is All You Need. Dec. 17, 2017
1 - 12A Sister's All You Need? Dec. 25, 2017
Creator
Creator
Cast
Haruto Fuwa
Nayuta Kani
Kaiko Mikuniyama
Kenjirou Toki
Miyako Shirakawa
Ashley Oono
Kirara Yamagata
Itsuki Hashima
Setsuna Ena
Chihiro Hashima
Video trailer
Synopsis
Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he’s surrounded by a tight circle of friends, including a beautiful genius writer who loves him, a big-sisterly college classmate, a fellow male writer, a sadistic tax accountant, his editor, and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. As the story progresses, the underlying conflicts of dreams and goals surface, as each character attempts to achieve their dreams, in their own way. 
Original title 妹さえいればいい。
TMDb Rating 8 35 votes
First air date Oct. 08, 2017
Last air date Dec. 25, 2017
Seasons 1
Episodes 12
Average Duration 24 minutes
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