Summer Sis!
Series Overview
The joys of summer break; warm weather, sun soaked beaches, time off from school, and in the case of Yuuta Yamauchi, a torrid love affair with your cousin. Summer Sis details the sexual relationship between Yuuta and his cousin, Kei Higashide, who offered to help him study for his college entrance exam. As their relationship develops, Kei becomes aware of a girl named Youko who may be toying with Yuuta. Yuuta's summer is about to get very complicated, and it's anybody's guess if he'll actually get any studying done!
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.
Broadcast Syndication
1 Season • 2 Episodes
15 min per episode
2011 – 2012
Premiered: Fri, Dec 30, 2011
Latest Aired Episode
Season 1, Episode 2: “Lo, Loveeee!”
Kei lets Yuta enjoy a pillow on his lap. Rather than Yuta's perverted reaction, he is interested in the couple making out nearby. I wonder if they look like they are making out to that couple. When he thinks about it, Kei feels embarrassed, which is unusual for him. Regardless of Kei's thoughts, Yuta takes this opportunity to pull down the bra of her swimsuit and indulge in Kei's bare breasts. Kei scolds Yuta, but he is unable to shake off Yuta's attack of indulgence and they end up having sex. While going to the summer festival alone, Kei accidentally finds out the true nature of Yoko, the object of Yuta's unrequited love. One day, as Yuta is staring blankly at a photo of Yoko on his cell phone, Kei appears in front of him. What action does Kei take in front of Yuta, who is surprised?
Seasons & Episodes Breakdown
Cast & Creators
Explore Star Directory →
Creative Leadership & Key Crew
Yoshifumi Sueda
Yoshifumi Sueda
Shishido Baidoku
Department Leadership Roster
Shishido Baidoku
Producer
Yoshifumi Sueda
Director
Production Stills & Gallery
Official cinematic photography and background stills for Summer Sis!.
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Frequently Asked Questions About Summer Sis!
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is Summer Sis! about?
The joys of summer break; warm weather, sun soaked beaches, time off from school, and in the case of Yuuta Yamauchi, a torrid love affair with your cousin. Summer Sis details the sexual relationship between Yuuta and his cousin, Kei Higashide, who offered to help him study for his college entrance exam. As their relationship develops, Kei becomes aware of a girl named Youko who may be toying with Yuuta. Yuuta's summer is about to get very complicated, and it's anybody's guess if he'll actually get any studying done!
How many seasons does Summer Sis! have?
Summer Sis! comprises 1 season available to explore.
Who stars in Summer Sis!?
Key cast members in Summer Sis! include Hikaru Watanabe, Risa Tsubaki, Kibayashi Izou.
Who created or directed Summer Sis!?
Summer Sis! was developed and directed by Yoshifumi Sueda.