kiss×sis OAD is available for unlimited streaming in Japan on DMM TV, U-NEXT, and dAnime Store (dアニメストア). Of the three, DMM TV is the most affordable option, offering all 12 episodes for just ¥550 per month with a 14-day free trial for new subscribers.

What Is kiss×sis OAD?

kiss×sis OAD is an anime adaptation of the manga by Ditama Bow (ぢたま某), published by Kodansha. Released as OAD episodes bundled with limited-edition DVD versions of the original manga volumes, the series ran from December 2008 to April 2015, totalling 12 episodes (Episode 0 through Episode 11). The story is a romantic comedy following Keita Suminoe, a younger stepbrother constantly pursued by his twin stepsisters Ako and Riko.

The series was directed by Munenori Nawa and animated by feel. — the same director and studio behind the 2010 TV anime adaptation. However, the two versions contain different episodes, so be sure to select the page labelled “OAD” when searching on streaming platforms.

Streaming Availability (Updated October 2026)

• DMM TV — Unlimited / ¥550/month / 14-day free trial + 550 bonus points
• U-NEXT — Unlimited / ¥2,189/month / 31-day free trial + ¥500 in points
• dAnime Store — Unlimited / ¥660/month / First month free
• Amazon Prime Video — Purchase only / ¥440 per episode or ¥8,448 for the full series
• Lemino, Hulu, Netflix, Disney+, FOD, ABEMA, TELASA — Not available

The series is also not available on TVer, Japan’s free catch-up TV service.

Streaming Services Compared

DMM TV

DMM TV is the most cost-effective way to watch all 12 episodes of kiss×sis OAD. At ¥550 per month, new subscribers receive a 14-day free trial and 550 welcome points. The platform covers a wide range of anime, from current TV series to older OADs.

U-NEXT

U-NEXT also streams kiss×sis OAD with unlimited access. Its strength lies in its broad content library, which includes films, dramas, anime, and magazines — making it ideal for viewers who want more than just anime. The monthly fee is ¥2,189, with a 31-day free trial and ¥500 in points upon first registration (valid for 30 days).

dAnime Store

dAnime Store is a dedicated anime streaming service priced at ¥660 per month, with the first month free for new subscribers. Note that the service auto-renews after the free period ends and the full monthly fee applies from that month onward.

Purchasing on Amazon Prime Video

For those who prefer to own a digital copy, kiss×sis OAD is available on Amazon Prime Video at ¥440 per episode or ¥8,448 for the complete series. Purchased episodes can be rewatched without any expiry date. That said, subscribing to an unlimited service like DMM TV is significantly cheaper if you plan to watch all 12 episodes.

Story and Highlights

Keita Suminoe is a junior high school student preparing for high school entrance exams. His twin stepsisters, Ako and Riko, became family after their parents remarried — and both are head over heels for him, launching bold advances on a daily basis.

A standout episode is Episode 4, “A Blissful Hot Spring Trip”, in which Keita and his stepsisters celebrate his acceptance into the same high school with an onsen getaway — picking up where the TV anime’s finale left off. Each OAD episode adapts content from a corresponding manga volume, giving fans animated versions of their favourite chapters. The full run of 12 episodes was produced over nearly seven years.

Main Cast

• Keita Suminoe — voiced by Ken Takeuchi
• Ako Suminoe — voiced by Ayana Taketatsu
• Riko Suminoe — voiced by Yuiko Tatsumi
• Mikazuki Kiryuu — voiced by Asuka Okame
• Yuuzuki Kiryuu — voiced by Asami Imai

Ayana Taketatsu (Ako) and Yuiko Tatsumi (Riko) also performed the TV anime’s opening theme, “Balance KISS”, together.

Production Details

• Original work: kiss×sis manga by Ditama Bow (Kodansha)
• Format: OAD bundled with limited-edition manga volumes
• Release period: December 2008 – April 2015
• Episodes: 12 (Episode 0–11)
• Director: Munenori Nawa
• Animation studio: feel.

The final OAD episode was bundled with the limited edition of manga volume 14, released in April 2015.

FAQ

How does the OAD differ from the TV anime?

The kiss×sis OAD series was bundled with limited-edition manga volumes, while the TV anime aired on AT-X in 2010 as a standalone 12-episode series. Both share the same director and studio but contain different episodes. They are listed as separate titles on streaming platforms.

Is kiss×sis OAD available for free?

No free streaming option was found in the current survey. However, DMM TV, U-NEXT, and dAnime Store all offer free trial periods for new subscribers.

Is it on Netflix?

No. kiss×sis OAD is not available on Netflix. For unlimited streaming, use DMM TV, U-NEXT, or dAnime Store.