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Kiss×sis volume 1 cover.jpg
The first volume of Kiss×sis as published by Kodansha
Genre Harem, Romantic comedy
Author Bow Ditama
Publisher Japan Kodansha
Demographic Seinen
Magazine Bessatsu Young Magazine
Original run December 11, 2005 – ongoing
Volumes 5
Original video animation
Director Munenori Nawa
Studio Japan Feel
Released December 22, 2008 – June 4, 2010
Runtime 24 minutes each
Episodes 4
TV anime
Director Munenori Nawa
Studio Japan Feel
Network Japan AT-X
Original run April 2010scheduled
Anime and Manga Portal

Kiss×sis (キス×シス Kisu×shisu?) is a Japanese seinen manga written and illustrated by Bow Ditama. The manga originally was printed as a one-shot in January 2004 in Kodansha's seinen manga magazine Bessatsu Young Magazine, and began regular serialization in the same magazine on December 11, 2005. As of November 2008, five tankōbon volumes of the manga have been released in Japan. An original video animation episode by Feel was bundled with the third manga volume released on December 22, 2008. A TV anime series adaptation produced an "alternate retelling" from the OVAs was announced on November 13, 2009.



Kiss×sis's story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who kiss, flash, and display their love for him in public. They help him prepare for his exams. Although they share no blood-relation to him, Keita begins to become romantically attracted to his two stepsisters and initially dislikes himself for it. Seeing this attraction, his two parents encourage him to eventually get married to one of them.


Suminoe family

Keita Suminoe (住之江 圭太 Suminoe Keita?)
Voiced by: Ken Takeuchi
Keita is a third-year junior-high school student studying for his high school entrance exams and although he is the younger brother, it is obvious he is the most mature of the three siblings. He wants to enter the same high school as his older twin step-sisters Ako and Riko, and to do so must study hard while getting help from his sisters as well as he was originally planning on relying on his track running scholarship for another school. While at first he initially dislikes himself for becoming attracted to Ako and Riko, he later becomes proactive in his desires. It is later revealed he was in love with his sisters when they were kids, and even used all of his money that he saved up for a prayer that he could marry both of them. This changed when he found out from his father that polygamy is illegal and "grew up". He is weak when it comes to alcohol, and will become livelier when he drinks, but after he sobers up he does not remember anything he did. After chapter eighteen of the manga, he makes it into his sisters' school Gakushū Senior High. Though he has strong morals (that have clearly weakened with the constant "attacks" his sisters have done throughout the series), he is a pervert, as he will try to resist to the best he can but if pushed too far he will simply indulge in the moment.
Ako Suminoe (住之江 あこ Suminoe Ako?)
Voiced by: Ayana Taketatsu
Ako is the elder twin sister. A way to tell her apart from Riko is that she wears a hair clip to keep the hair off her forehead. She has a reliable, level-headed personality, but can be sullen, moody, even a bit childish and is quickly embarrassed. She carries herself differently than her sister, is more skilled in cooking which she learned to help her mom out with the housework, and is strong with alcohol which she sometimes uses to her advantage to knock out Riko to have the livelier Keita all to herself. She is a closet pervert and more often planning her seduction of Keita, even hiding porn magazines in her room. At school, she is on the school committee, but has a habit of abusing her authority to get Keita.
Riko Suminoe (住之江 りこ Suminoe Riko?)
Voiced by: Yuiko Tatsumi
Riko is the younger twin sister. A way to tell her apart from Ako is that she wears her hair in a ponytail, and it is longer than her sister's hair. Also, she has a bandage below her left eye. She likes to do things at her own pace, and is more positive than Ako. She tends to be clumsy and is weak with alcohol. However, she is more proactive in tempting Keita to fall in love with her. She has a habit of answering truthly but very blunt, causing everyone else to jump to conclusions, even at one time about to honestly state that she and her sister wanted a computer solely for porn, however was quickly stopped by Ako. She is much shyer in person than her sister, as she could not kiss Keita in front of others. At school, she is on the disciplinary committee, where she uses a bokken/shinai to punish the students and she has more of a strict personality, yet just like her sister will abuse her authority to get Keita.


Miharu Mikuni (三国 美春 Mikuni Miharu?)
A teenage girl that was introduced in chapter 18 where she returned Keita's acceptance letter when she found her dog trying to bury it in her yard. Out of a combination of stress from believing he did not get in to the relief he found out he did get in, Keita hugs her out of the blue. After that action she has shown an attraction towards Keita, often blushing when they talk and feeling very comfortable when he hugs her, but overall states she has nothing to do with him. Though it is obvious she is attracted to him, keeping her distance because of his sisters as well as her own inexperience being around boys, even fantasying him raping her and experiencing an orgasm from him giving her a piggy back ride. Even though she does not go after him, his sisters still see her as a possible threat for Keita's heart. It is noted from Keita that she has a bigger bust than his sisters when he recalls the first hug they shared. She is currently in Gakushū Senior High and in the same class as Keita. People often mistake her being involved with Keita and will most of the time become caught in the cross fire of many of the twins' antics (which she comments on in chapter 25). She is the only girl Keita gets nervous around, suggesting he might have feelings for her. She has a weak bladder and occasionally wets herself, including once in front of Keita, but he promises to keep it a secret.
Mikazuki Kiryū (桐生 三日月 Kiryū Mikazuki?)
She is an underclassman that is "chasing after him (Keita)". They were in the same sports club back at his old school. She is even more perverted than Ako and Riko when it comes to getting Keita's attention, with no qualms of flashing her privates at him in front of others. She is also a bit of an airhead, believing that Miharu and Keita are no longer virgins when she found them hugging. Yūzuki's is her older sister, usually referring to her in private as "my otaku sister", who Mikazuki looks up to and loves very dearly, even stating once the visual novel she bought was for her to cover for her sister. However, she also enjoys taking lewd pictures of her sister in cosplay as compensation for covering for her. She was able to correctly assume that her sister has feelings for Keita.
Yūzuki Kiryū (桐生 夕月 Kiryū Yūzuki?)
She is Mikazuki's older sister, the new teacher to Gakushū Senior High and homeroom teacher to Keita and Miharu, who in an earlier chapter was a clothing store clerk because she liked western style clothing. Through bad timing and unaware that Keita and his sisters are not related by blood, she believes that he is a deviant who dates multiple girls while having an incestuous relationship with his sisters. She becomes excited by her exaggerated ideas of what he and his sisters do at home or with other girls. Through these beliefs, she tries to recruit Miharu, believing she is one of the girls Keita is dating, to have them go on a date to separate him from his sisters. She is a virgin, however after clearing everything up, she starts to have growing feelings for Keita as well that goes to a lustful desire, practically raping his P.E. clothes as she is addicted to the scent of his sweat and fantasizing them having sex. She is a closet fujoshi (female otaku) with a samurai fetish, and also likes to cosplay. Due to this, she spends so much money on otaku goods that she usually eats instant noodles. This is also why she no longer lives with her parents, as her mother would disown her if she continued with her otaku ways. The sisters see her as a possible threat for Keita's heart because they believe he has fetish for older woman, and the fact that she has a much bigger bust than them. She also mistakenly believes because of all of the outfits the twins usually wear solely to get Keita's attention that they might be just like her.
Other male students
They are usually seen around Keita stating how much they love his sisters and are jealous that he is their brother. They appear to be masochistic, as the sole reason they joined Gakushū Senior High was because they wanted to get punished by the twins like back when they were in middle school. One of them often says "Keita is so lucky" to the annoyance of the others.



Kiss×sis began as a seinen manga series written and illustrated by Bow Ditama which originally began as a one-shot printed in January 2004 in Kodansha's seinen manga magazine Bessatsu Young Magazine.[1] The manga began regular serialization in the same magazine on December 11, 2005. The manga will be transferred to Monthly Young Magazine on December 9, 2009 as Bessatsu Young Magazine becomes a monthly publication instead of a bimonthly one.[2] The first bound volume was released in Japan on September 6, 2007 published under Kodansha's KC Deluxe imprint.[3] As of November 2009, five tankōbon volumes have been published.[4]


It was announced in June 2008 that an animated adaptation of the manga series would be produced.[5] An original video animation episode produced by the studio Feel and directed by Munenori Nawa was bundled with the third manga volume released on December 22, 2008 as "episode 0".[6][7] Another OVA episode, "episode 1", was bundled with the fourth manga volume released on May 22, 2009.[8][9] The third episode, "episode 2", was bundled together with the fifth volume of the manga on November 20, 2009.[1][10] A fourth episode is scheduled to be released with the sixth volume of the manga on June 4, 2010. At the end of the third episode it was announced that pre-order sales will end a couple months before it goes on sale, and there will on be an exact number of copies produced to match the pre-order sales.[11] The series uses two pieces of theme music. The opening theme is "Honey Boy for Two" (ふたりの♥ハニーボーイ Futari no ♥ Hanibōi?) by Ako and Riko while the ending theme is "Starry Sky Tale" (星空物語 Hoshizora Monogatari ?) by Nana Takahashi.

Episode listing

# Title Original air date
01 "episode 0"   December 22, 2008[7]
02 "episode 1"   May 22, 2009[9]
03 "episode 2"   November 20, 2009[10]
04 "episode 3"   June 4, 2010


  1. ^ a b "Kiss×sis Manga Gets TV Anime Green-Lit for Next Spring". 2009-11-13. Retrieved 20 November 2009. 
  2. ^ "Bessatsu Young Magazine Goes Monthly on December 9". Anime News Network. 2009-10-16. Retrieved 20 November 2009. 
  3. ^ "Kiss×sis (1)" (in Japanese). Kodansha. Retrieved 2009-04-17. 
  4. ^ "Kissxsis(5)" (in Japanese). Kodansha. Retrieved 29 November 2009. 
  5. ^ "Kiss×sis Manga from Mahoromatic's Ditama to be Animated". Anime News Network. 2008-06-20. Retrieved 2008-06-20. 
  6. ^ "20th Century Boys 2 Film, Stitch!, Kissxsis Dated". Anime News Network. 2008-08-06. Retrieved 2008-08-06. 
  7. ^ a b "DVD付き初回限定版 Kissxsis(3)" (in Japanese). Kodansha. Retrieved 29 November 2009. 
  8. ^ "Kiss×sis Manga Gets Another Anime DVD Green-Lit". Anime News Network. 2008-12-18. Retrieved 2008-12-18. 
  9. ^ a b "DVD付き初回限定版 Kissxsis(4)" (in Japanese). Kodansha. Retrieved 29 November 2009. 
  10. ^ a b "DVD付き初回限定版 Kissxsis(5)" (in Japanese). Kodansha. Retrieved 29 November 2009. 
  11. ^ "Kiss×sis Manga Gets 4th Original Anime DVD Green-Lit". Anime News Network. 2009-11-20. Retrieved 29 November 2009. 

External links

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