The official website for the upcoming TV anime adaptation of Saburouta's popular yuri manga citrus opened on September 1, posting a key visual and a 90-second first PV introducing its main character voices. It is also announced that the Passione (Rokka: Braves of the Six Flowers)-animated series is set to premiere on Tokyo MX, AT-X, and BS Fuji in January 2018.

Key visual (via: Comic Natalie)

義理姉妹描く百合アニメ「citrus」新ビジュ＆PV、放送は2018年1月 https://t.co/Q8fi3bkBzw pic.twitter.com/vJu06V4BDy

— コミックナタリー (@comic_natalie) 2017年9月1日

1st PV

TV Anime Main Staff:

 Director: Takeo Takahashi (Spice and Wolf, Hinako Note)

 Series Composition/Scenarios: Naoki Hayashi

 Character Designer/Chief Animation Director: Izuro Ijuin (WORKING!!!, Girlish Number episode animation director)

 Music Production: Lantis

 Produce: Infinite

 Anime Production: Passione (Rokka: Braves of the Six Flowers)

Main Voice Cast:

 Yuzu Aihara: Ayana Taketatsu

 Mei Aihara: Minami Tsuda

 Harumi Taniguchi: Yukiyo Fujii

 Himeko Momokino: Yurika Kubo

 Matsuri Mizusawa: Shiori Izawa

 Kayo Maruta: Ikumi Hayama

Saburouta's citrus manga has been serialized in Ichijinsha's yuri manga anthology Comic Yuri Hime 

since its January 2013 issue and currently seven tankobon volumes are available in Japan. The story

centers on the relationship between a first grade high school girl Yuzu Aihara and her sister-in-law

Mei Aihara. The four main voice cast of Yuzu, Mei, Harumi and Himeko in the drama CD released in

August 2015 are set to reprise ther roles in the anime.

Its English editions are released by Seven Seas Entertainment.

The US publisher describes the story as below:

Yuzuko Aihara, a high school girl whose main interests are fashion, friends and having fun, is about to

get a reality check. Due to her mom’s remarriage, Yuzu has transferred to a new, all-girls school that

is extremely strict. Her real education is about to begin. From Day One, happy-go-lucky Yuzu makes

enemies, namely the beautiful yet stern Student Council President Mei. So what happens when a dejected

Yuzu returns home and discovers the shock of her life: that Mei is actually her new step-sister who has

come to live with her? Even more surprising, when Mei catches Yuzu off-guard and kisses her out of the

blue, what does it all mean?

1st and 7th volume covers

Source: TV anime "citrus" official website, Comic Natalie

© Saburouta, Ichijinsha/citrus Production Committee © Saburouta/Ichijinsha