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.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | I Only Need a Little Brother Who Can Cook, a Beautiful Naked Girl, and Friends I Can Relate To. | 2017-10-08 | 30 min |
| Season 1 | Episode 2 | If Only a Miracle Would Happen. | 2017-10-15 | 25 min |
| Season 1 | Episode 3 | As Long as It's Research. | 2017-10-22 | 25 min |
| Season 1 | Episode 4 | As Long as You're Working. | 2017-10-29 | 25 min |
| Season 1 | Episode 5 | All You Need Is to Write Novels. | 2017-11-05 | 25 min |
| Season 1 | Episode 6 | Having Your Media Developments Go Well Is All You Need. | 2017-11-12 | 25 min |
| Season 1 | Episode 7 | Adventure Is All You Need | 2017-11-19 | 25 min |
| Season 1 | Episode 8 | All You Need Is Love and Friendship. | 2017-11-26 | 25 min |
| Season 1 | Episode 9 | Nudity and Underwear Are All You Need | 2017-12-03 | 25 min |
| Season 1 | Episode 10 | A Lack of Problems Is All You Need. | 2017-12-10 | 25 min |
| Season 1 | Episode 11 | Becoming the Protagonist Is All You Need. | 2017-12-17 | 25 min |
| Season 1 | Episode 12 | A Sister is All You Need? | 2017-12-24 | 25 min |
| Writing | Yomi Hirasaka | Screenplay |
| Visual Effects | Sumie Kinoshita | Supervising Animation Director |
| Sound | Tomoki Kikuya | Original Music Composer |
| Visual Effects | Sumie Kinoshita | Character Designer |
| Art | Kantoku | Original Series Design |
| Directing | Jin Tamamura | Series Director |
| Art | Hirofumi Sakagami | Art Direction |
| Sound | Masanori Tsuchiya | Sound Director |
| Camera | Mutsumi Usuda | Director of Photography |
