Oreimo — Season 1
12 episodesFirst aired 3 October 2010
Living in the shadow of his talented younger sister, Kyousuke Kosaka conducts a normal lifestyle until he accidentally finds out that she hides a secret. In addition to being smart, pretty, and popular; Kirino Kosaka is also an obsessive consumer of anime and eroge (adult computer games). What will Kyousuke do? Will this tear their already rocky relationship apart or bring them closer together?
E1My Little Sister Can't Be My Love
7.0Oct 201025m
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.
E2My Little Sister Can't Bring Me to an IRL Meet
7.0Oct 201025m
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.
E3My Little Sister Can't Be This Cute
7.5Oct 201025m
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.
E4My Little Sister Can't Be Going to Summerket
7.0Oct 201025m
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.
E5My Little Sister's Best Friend Can't Be This XX
7.0Oct 201025m
On the way home from an enjoyable Summerket. They bump into Aragaki Ayase, Kirino's best friend.
E6My Childhood Friend Can't Be This Cute
5.0Nov 201025m
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.
E7My Little Sister Can't Be a Novelist
5.0Nov 201025m
Kyousuke comes home one day and is startled to find Kuroneko loitering in the living room by herself.
E8My Little Sister Can't Be Animated
7.5Nov 201025m
Kirino has made her debut as an author. Reader response has been overwhelming, and her editor has even better news to report.
E9My Little Sister Can't Be This Absorbed Into Eroge
5.0Nov 201025m
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.
E10My Little Sister Can't Be Cosplaying Like This
7.5Dec 201025m
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.
E11My Little Sister Can't Be This Maid
7.0Dec 201025m
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.
E12My Little Sister's Advice Can't End Here (GOOD END)
5.0Dec 201025m
Ever since the events of the previous episode, Kyousuke has been nervous about his improved relationship with his sister.