Oreimo Episode Ratings Heatmap
2010 · 2 Seasons · 25 Episodes · Overall Score: 6.5/10 (12 rated)
Season 1 holds the highest collective average score across the series.
Season 1 Details →Lowest score variance (σ = 1.1), maintaining an average of 6.5.
Season 1 finale: "My Little Sister's Advice Can't End Here (GOOD END)"
Episode Recap →Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
Ratings Analysis & Trajectory
Across 2 seasons and 25 episodes, Oreimo has earned an overall series rating of 6.5 out of 10. The series displays remarkable consistency across its narrative arc, maintaining reliable ratings from premiere to conclusion.
The single highest-rated hour of television in the series is Season 1, Episode 3 ("My Little Sister Can't Be This Cute"), rated at an extraordinary 7.5/10 with 2 ratings. Conversely, the lowest-rated installment is Season 1, Episode 12 ("My Little Sister's Advice Can't End Here (GOOD END)"), landing at 5.0/10.
The most precipitous single-episode shift occurred in Season 1 between Episode 8 ("My Little Sister Can't Be Animated", 7.5) and Episode 9 ("My Little Sister Can't Be This Absorbed Into Eroge", 5), a swing of 2.5 points.
Top 10 Highest Rated Episodes of Oreimo
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 1, Ep 3 | My Little Sister Can't Be This Cute | 7.5 | 2 | Oct 17, 2010 |
| #2 | Season 1, Ep 8 | My Little Sister Can't Be Animated | 7.5 | 2 | Nov 21, 2010 |
| #3 | Season 1, Ep 10 | My Little Sister Can't Be Cosplaying Like This | 7.5 | 2 | Dec 5, 2010 |
| #4 | Season 1, Ep 1 | My Little Sister Can't Be My Love | 7.0 | 3 | Oct 3, 2010 |
| #5 | Season 1, Ep 2 | My Little Sister Can't Bring Me to an IRL Meet | 7.0 | 3 | Oct 10, 2010 |
| #6 | Season 1, Ep 4 | My Little Sister Can't Be Going to Summerket | 7.0 | 2 | Oct 24, 2010 |
| #7 | Season 1, Ep 5 | My Little Sister's Best Friend Can't Be This XX | 7.0 | 2 | Oct 31, 2010 |
| #8 | Season 1, Ep 11 | My Little Sister Can't Be This Maid | 7.0 | 2 | Dec 12, 2010 |
| #9 | Season 1, Ep 6 | My Childhood Friend Can't Be This Cute | 5.0 | 1 | Nov 7, 2010 |
| #10 | Season 1, Ep 7 | My Little Sister Can't Be a Novelist | 5.0 | 1 | Nov 14, 2010 |