KissXSis_
Original: kiss×sis
The 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 share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.
Network
AT-X
Episodes
12
Updated Feb 16, 2026
WHERE TO WATCH
Tubi
3 countries
Anime Times Amazon Channel
1 country
dAnime Amazon Channel
1 country
Prime Video
FREE
1 country
A
Aniverse Amazon Channel
1 country
ALL REGIONS
DROPTHE_ GOSSIP
Overview
KissXSis has 1 season with 12 episodes spanning 2010.
Rating
KissXSis holds a 6.4/10 rating based on 118 votes.
Year context
KissXSis first aired 16 years ago in 2010.
CAST (6)
Ayana Taketatsu
Ako Suminoe (voice)
Yuiko Tatsumi
Riko Suminoe (voice)
Ken Takeuchi
Keita Suminoe (voice)
Yoriko Nagata
Miharu Mikuni (voice)
Asami Imai
Yuzuki Kiryu (voice)
Asuka Ohgame
Mikazuki Kiryu (voice)
SEASONS (1 season, 12 episodes)
SEASON 1
01
Wonderful Days
Keita Suminoe has a problem with his twin step-sisters, Ako and Riko, being overly romantic towards him. However, he wants to attend the same high…
02
A Lesson for Two
Ako decides to help Keita study in order to improve his passing rate, though both have a little trouble staying focused on the matter at…
03
Alluring Sweets
Keita gets annoyed with being kissed by Ako and Riko him all the time and instigates a ban on kissing. Overhearing that Keita likes sweet…
04
Qualifications of a Lover
While Keita studies at school, Ako and Riko reminisce on when they started going to junior high, the first time they were apart from Keita.…
05
I'm Sorry!
While talking to his friends, Keita accidentally gropes his fellow student, Miharu Mikuni, and gets slapped. Ako and Riko become suspicious about whether Keita has…
06
Uneasiness at Akihabara
Unable to view and get porn from the internet using a PC their father won at a raffle, Ako and Riko decides to buy erotic…
07
Wh-What!? A Dripping Wet Midsummer Delusion
One of Keita's friends coaxes him into going to the pool with him and Mikazuki and inviting Ako and Riko. Suspicious of what they might…
08
It's Always That in August
The summer festival comes, and it will be the only day Keita will be free from all the prep school work. This means that Ako…
09
Turning to God Only in Times of Suffering
As Keita tries to study, Ako and Riko compete with each other to be the most helpful. Whilst alone in the room, Riko and Keita…
10
At Last, the Real Thing!
With Keita ill before the big exams Ako and Riko step up to the mark by getting out of school and making Keita feel better…
11
Nitpicking a Good Day!
Keita eagerly awaits the results of his exams, with Ako and Riko trying to give him good luck, though encounter several unlucky omens along the…
12
One, Two, Threesome!
After Keita's graduation, Ako and Riko arrive to find they were too late to get the second, or any button, off of Keita's blazer. They…
SERIES INFO
1
Seasons
12
Episodes
25 min/ep
Per Episode
Ended
Status
NETWORKS (1)
AT-X
DETAILS
FREQUENTLY ASKED QUESTIONS
What is KissXSis about?
The 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 share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.
Where can I watch KissXSis?
KissXSis is available on Tubi, Anime Times Amazon Channel, dAnime Amazon Channel, Prime Video, Aniverse Amazon Channel. Availability varies by region.
How many seasons does KissXSis have?
KissXSis has 1 season with 12 episodes total.
Who stars in KissXSis?
The cast of KissXSis includes Ayana Taketatsu, Yuiko Tatsumi, Ken Takeuchi, Yoriko Nagata, Asami Imai.
What is the rating of KissXSis?
KissXSis has a rating of 6.4 out of 10 based on 118 votes on TMDB.
Is KissXSis still running?
KissXSis has ended. The final episode aired on .
GENRES (2)
Animation
Comedy
