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Series

Oreimo

201025m6.9 / 102 seasons

Oreimo follows the daily life of an ordinary high school boy named Kyousuke Kousaka. Kyousuke’s younger sister Kirino is a pretty fashion model, but also hides a dark secret of being an otaku of adult games. Kyousuke is the only person to whom Kirino reveals her hidden obsession and other issues.

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Available in US

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Season guide

Season 1

Play Season

12 episodes available

Episode 1: My Little Sister Can't Be My Love

25m

For years, ordinary high-schooler Kousaka Kyousuke has had an icy relationship with his younger sister Kirino, a star athlete who is also a star student.

Episode 2: My Little Sister Can't Bring Me to an IRL Meet

25m

While being grilled by Kirino over why he hasn't made any progress in the game she ordered him to complete, it occurs to Kyousuke that she needs some friends that she can talk to without concealing her otaku interests.

Episode 3: My Little Sister Can't Be This Cute

25m

Kirino finds her first otaku friends at the IRL meet: "Kuroneko" and "Saori Bajeena." They spend their days deep in discussions over their otaku interests. Seeing Kirino this way puts Kyousuke's mind at ease.

Episode 4: My Little Sister Can't Be Going to Summerket

On screen

Cast & Characters

Yuichi Nakamura

Kyousuke Kousaka (voice)

Ayana Taketatsu

Kirino Kousaka (voice)

Satomi Sato

Manami Tamura (voice)

Saori Hayami

Ayase Aragaki (voice)

Hitomi Nabatame

Saori Vageena (voice)

Kana Hanazawa

Ruri Gokou (voice)

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25m

One day, Kirino's non-otaku, "public" friends—Aragaki Ayase and Kurusu Nanako—come over to visit. Kyousuke is harshly told by Kirino to not let her friends see him.

Episode 5: My Little Sister's Best Friend Can't Be This XX

25m

On the way home from an enjoyable Summerket. They bump into Aragaki Ayase, Kirino's best friend.

Episode 6: My Childhood Friend Can't Be This Cute

25m

Kyousuke is asked about his relationship with Manami by his friend, Akagi. Akagi is exasperated when Kyousuke answers that, although they don't have a romantic relationship, he doesn't want her to be taken by anyone else.

Episode 7: My Little Sister Can't Be a Novelist

25m

Kyousuke comes home one day and is startled to find Kuroneko loitering in the living room by herself.

Episode 8: My Little Sister Can't Be Animated

25m

Kirino has made her debut as an author. Reader response has been overwhelming, and her editor has even better news to report.

Episode 9: My Little Sister Can't Be This Absorbed Into Eroge

25m

Kirino has been acting strangely antsy for the past few days. The reason is that the little sister game she ordered hasn't arrived yet.

Episode 10: My Little Sister Can't Be Cosplaying Like This

25m

One day, Ayase calls Kyousuke out of the blue and asks him to see her. She wants to get Kirino a present, and wants him to think of what she would be happiest to get.

Episode 11: My Little Sister Can't Be This Maid

25m

Sent out to buy groceries by his mother, Kyousuke bumps into Manami at the supermarket. They get to talking, and they eventually arrange for Manami to come visit for the first time in ages.

Episode 12: My Little Sister's Advice Can't End Here (GOOD END)

25m

Ever since the events of the previous episode, Kyousuke has been nervous about his improved relationship with his sister.