A Sister's All You Need

2017 7.6

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.

Play

Play Chihiro's All You Need

1
Chihiro's All You Need
2017-09-10
Itsuki is frustrated after his manuscript gets rejected by his editor. He hangs out at home with Chihiro (his younger “brother”), Miyako, Nayuta, and Haruto. Light banter, comedic rejection & friendship moments.
Play Nayuta's All You Need

2
Nayuta's All You Need
2017-10-09
Nayuta and Miyako reflect on how they met Itsuki and how their friendship developed. Some cute or comedic character build‑up.
Play Miyako's All You Need

3
Miyako's All You Need
2017-10-23
Itsuki travels for inspiration with Nayuta and Miyako, then is dragged along by some other friends (like illustrator Setsuna) to places like Okinawa, Hokkaido. Small adventure vibes.
Play Haruto's All You Need

4
Haruto's All You Need
2017-10-30
After work/manuscripts are submitted, the friends gather for a board game session. Itsuki reveals his feelings for Nayuta to Haruto (not knowing she heard). Ends with a reveal that one of his novels is going to be adapted into an anime.
Play Kaiko's All You Need

5
Kaiko's All You Need
2017-12-03
Kaiko is introduced in the regular anime series during episode 6, "Having Your Media Developments Go Well Is All You Need." In this episode, Itsuki meets the refined manga artist to discuss his work, only to discover she shares his love for little sisters.
Play Ashley's All You Need

6
Ashley's All You Need
2017-12-10
The special features super-deformed, or chibi, versions of the characters in a two-minute episode.
Play Toki's All You Need

7
Toki's All You Need
2018-01-26
The anime series itself is a comedy about a novelist, Itsuki Hashima, whose life is dominated by his obsession with "little sisters". The special episode likely focuses on one of the supporting characters, Toki.
Play Setsuna's All You Need

8
Setsuna's All You Need
2018-03-23
The special episode focuses on the character Setsuna and is a short, 2-minute installment.