Girl genius "Null" has just lost her beloved big sister "Peta" in an accident. But don’t you worry! She’ll just use her naturally gifted intelligence to bring her big sister back as a robot! But is her newly-revived big sister just a little different than before? It’s time for the wacky comedy hijinks of little sister "Null" and big sister robot "Peta"! "Big Sis! Your plug fell out of the wall!"
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Sister Complete! | 2019-10-04 | 5 min |
| Season 1 | Episode 2 | My Big Sister's Perfect Food! | 2019-10-11 | 5 min |
| Season 1 | Episode 3 | Big Sister, Do I Have to Go to School? | 2019-10-18 | 5 min |
| Season 1 | Episode 4 | Big Sister, Do I Have to Go to Space? | 2019-10-25 | 5 min |
| Season 1 | Episode 5 | My Big Sister Is Dead?! | 2019-11-01 | 5 min |
| Season 1 | Episode 6 | Big Sister, What's Your Favorite Snow Cone Flavor? | 2019-11-08 | 5 min |
| Season 1 | Episode 7 | My Big Sister's Acting Suspicious!? | 2019-11-15 | 5 min |
| Season 1 | Episode 8 | My Big Sister's Bugging Out! | 2019-11-22 | 5 min |
| Season 1 | Episode 9 | My Big Sister's Brutal With a Hammer! | 2019-11-29 | 5 min |
| Season 1 | Episode 10 | I Think of My Sister, Therefore My Sister Is | 2019-12-06 | 5 min |
| Season 1 | Episode 11 | Big Sister, Big Sister, Big Sister! | 2019-12-13 | 5 min |
| Season 1 | Episode 12 | Null and Peta | 2019-12-20 | 5 min |
| Writing | Hato | Original Series Creator |
| Visual Effects | Eku Takeshima | Character Designer |
| Production | Ascension | Co-Producer |
| Visual Effects | Eri Takahashi | Color Designer |
| Art | Maki Morio | Art Direction |
| Camera | Takayuki Furukawa | Director of Photography |
| Sound | Jin Aketagawa | Sound Director |
| Sound | Yuki Kishida | Original Music Composer |
| Directing | Hirofumi Ogura | Series Director |
| Visual Effects | Koki Tsujimura | Opening/Ending Animation |
