On Christmas Eve (Seiya no Yoru ni - 聖夜の夜に) is the 22nd episode of THE iDOLM@STER anime series. It first aired on December 2nd, 2011.
Story
It's the Christmas season and Haruka wants to celebrate a Christmas Eve Party with everyone at 765 Pro just like last year. But with the idols' new fame, all of the girls are busy attending and performing at TV shows, Variety Shows, Holiday or Christmas Specials on Christmas Eve and most of them might not make it in time. Nevertheless, the Producer assures Haruka that he will try his best to get everyone for the party. During her dancing sessions, Haruka learns from the Producer that he has manage to get both she and Miki audition for the musical Spring Storm for the lead role. On Christmas Eve and finishing her work, Haruka accepts not everyone can make it for the party and decide to make the best of it. After buying a cake and a Christmas present for the Producer, Haruka arrives at 765 Pro studios with Chihaya and much to their surprise, some of the idols managed to make it for the party thanks to the Producer rescheduling their gigs. With the Producer and Miki the last to arrive, everyone eats the cakes they all bought and celebrate Christmas including Yukiho's birthday, until Junjirō announces to everyone that he has just received a call that Miki has won the Shining Idol New Artist Award. As the party continues, Haruka has a talk with Makoto, Iori and Chihaya on how their careers have changed and they might not be able celebrate together like this again but Chihaya and Haruka are still hopeful that all of them can still celebrate Christmas together.
Featured Song
Ending Theme
Happy Christmas! by 765 Pro Allstars.
Episode Guide
| # | Episode Title | Airdate | Watch Episode* |
|---|---|---|---|
| 1 | This Is Where the Girls Start | July 8, 2011 | 
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| 2 | The Girls Start Preparing | July 15, 2011 |
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| 3 | Everything Starts With One Courageous Step | July 22, 2011 |
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| 4 | That Changes Who I Am | July 29, 2011 |
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| 5 | Spending Summer Vacation With Everyone | August 5, 2011 |
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| 6 | The Decision to Continue Forward | August 12, 2011 |
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| 7 | Things You Love, Things That Are Important | August 19, 2011 |
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| 8 | The Indirect Route to Happiness | August 26, 2011 |
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| 9 | Things You Can Do As Two | September 2, 2011 |
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| 10 | Moving Forward a Little Bit with Everyone | September 9, 2011 |
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| 11 | Hopes, Uncertainties, and Signs | September 16, 2011 |
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| 12 | A Goal with a One-Way Path | September 23, 2011 |
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| 13 | And So, the Girls Rise to the Shining Stage | September 30, 2011 |
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| 14 | The World that Began to Change! | October 7, 2011 |
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| 15 | Everyone Together, It's a Live Broadcast! A Live Broadcast! | October 14, 2011 |
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| 16 | How It Feels to be All Alone | October 21, 2011 |
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| 17 | Makoto, A True Prince | October 28, 2011 |
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| 18 | Lots of Everything | November 4, 2011 |
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| 19 | Like the Moon Hiding Between the Clouds | November 11, 2011 |
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| 20 | Promise | November 18, 2011 |
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| 21 | Like a Flower Blooming | November 25, 2011 |
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| 22 | On Christmas Eve | December 2, 2011 |
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| 23 | Me | December 9, 2011 |
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| 24 | Dream | December 16, 2011 |
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| 25 | Everyone Together! | December 23, 2011 |
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| Bonus | The Story of 765PRO | June 16, 2012 |