| Episode 3 | |
|---|---|
 | |
| Japanese Title | 任せておけ、 この体育祭は99.9%の確率で俺たちの勝ちだ |
| Romanized Title | Makasete oke, Kono taiikumatsuri wa 99. 9% no kakuritsu de oretachi no kachida |
| English Title | Leave it to me, this sport festival is 99.9% of probability, of our victory |
| Airdate | April 20, 2014 |
| Theme Music | |
| Opening | Cupi-Doo Revue by Aoi Yuuki |
| Ending | Kanojo ga Flag wo Tateru Riyuu by YELL |
| Chronology | |
| Previous Episode | Episode 2 |
| Next Episode | Episode 4 |
One day, an android gets dropped off at Souta and co.’s dorm. Turns out that it’s from Akane’s family,
meant to protect her since she’s living in a co-ed dorm. The android’s name is Ruri, and everyone at Souta’s dorm quickly learns to get along with it.
Around lunchtime, student council president Mimori suddenly shows up, announcing that the school is going to be hosting a weeklong athletic festival. And Souta’s dorm has to win top place or else the dorm is going to be torn down and Souta will be expelled. Apparently the school’s higher-ups did not like the idea of a co-ed dorm; especially one with so few students living in it. So this was basically the only way Mimori could “negotiate” for the dorm’s survival.
Soon after Mimori leaves, Souta and co. are introduced to the person who would supposedly help lead them to victory: a brash, man-hating girl named Rin. Rin starts training all of the dorm mates hard in preparation for the festival. One day, while doing extra training with Souta, they both realize that they were childhood friends. Souta helps resolve Rin’s issues so she
becomes relatively nice and friendly. The episode ends just as the festival begins.