E1Graduation from Virginity at Age 17.3. What do we do now?
Where to watch
Not available in United States
Streaming in 15 other countries
17.3 about a sex isn't on any streaming service in United States right now, but it's available in Albania, Andorra, Bosnia & Herzegovina, Croatia and 11 more. Streaming rights are licensed per country.
Seasons & Episodes
E1
E2Is having sex really necessary in the first place?
E3Is it bad for girls to have a lot of experience?
E4Frankly speaking, do girls masturbate?
E5Does gender matter when falling in love?
E6Is breast size really that important?
E7Boys, have you ever had a haemorrhage for a week?
E8Dropping out of school due to pregnancy. Why only girls?
E917.3 years old. We're not at an age to say, "we don't know anything.
Cast · Directed by Ko Kanai
More from Riko Nagase · Lead actress
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Unsung Cinderella, Midori, the Hospital Pharmacist
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Love Unseen Beneath the Clear Night Sky
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5 Ways to Socially Kill Your Husband
2023 · 5.0
Child of Kamiari Month
2021 · 6.5
See all fromRiko Nagase
More from Ririka Tanabe · Co-star actress
Crossroad
2026 · 6.0
Code Blue
2008 · 7.6
DIVE!!
2021 · 6.0
The Greatest Teacher
2023 · 7.3
Strobe Edge
2025 · 5.8
Younger Boyfriend
2020 · 7.0
My Murdered Husband Has Returned
2025 · 7.8
My Strawberry Film
2024 · 6.5
Thanks For the Match.: Young Ladies Don't Play Fighting Games
2023 · 7.0
Drop
2023 · 6.8
See all fromRirika Tanabe
More from Ko Kanai · Director
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17.3 about a sex — streaming FAQ
Which OTT platform streams 17.3 about a sex?
17.3 about a sex isn't on any streaming service in United States yet, but it's available in Andorra, Albania and Bosnia & Herzegovina and other countries. Streaming rights differ by country — switch your country in the header to see where.
Is 17.3 about a sex on Netflix?
No, 17.3 about a sex is not on Netflix in United States as of September 2026.
Is 17.3 about a sex on Amazon Prime Video?
No, 17.3 about a sex isn't on Amazon Prime Video in United States right now.
Where can I watch 17.3 about a sex for free?
17.3 about a sex isn't streaming in United States yet, so there's no way to watch it free at the moment.
How many seasons are in 17.3 about a sex?
17.3 about a sex has 1 season in total (9 episodes). The series concluded in 2020.
Are all episodes of 17.3 about a sex out yet?
Yes — all 9 episodes across 1 season of 17.3 about a sex are out and available to stream.
Is there a Season 2 of 17.3 about a sex?
No — 17.3 about a sex ended after 1 season, so there is no Season 2.
