Genius girl Null suddenly lost her sister in an accident. But don't worry! Using her wealth of knowledge, she successfully rebuilt her sister as a robot! A disaster-filled comedy about sisterly love!
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Release Date:
Jan 30, 2020
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Notice: Null & Peta is no longer available on the Steam store.
 

Season 1

1. E01: Sister Complete!
Jan 31, 2020
5 minutes
Null lost her sister Peta in an accident, so she used her genius talents to build a robot version of her with the same memories and personality but... wait why is she in flight mode!?
2. E02: My Big Sister's Perfect Food!
Jan 31, 2020
5 minutes
Waiting for Null once her Wake-Up Machine disturbs her from the sweetest temptation in human history, the "double nap," is her sister's specialty dish! Yayyyyy! Wait... this is Dark Fried Riceeeeee!
3. E03: Big Sister, Do I Have to Go to School?
Jan 31, 2020
6 minutes
Null is messing around with machines again instead of going to school. Peta wants to slowly wash and bathe bath speed-runner Null. Her murderous scalp care treatment goes off with a bang! Oh dear...
4. E04: Big Sister, Do I Have to Go to Space?
Jan 31, 2020
5 minutes
Let's start with this style! A jet engine hidden in her backpack propels Null through the air. Although it's a magnificent way to avoid school, she ended up in space... This can get us home right? Right?
5. E05: My Big Sister Is Dead!?
Jan 31, 2020
6 minutes
Null tries to fix Peta, but the backups are corrupted! Oh well! She'll just have to have fun and spend time with her all-new big sister! New, new, new...!
6. E06: Big Sister, What's Your Favorite Snow Cone Flavor?
Jan 31, 2020
6 minutes
Summer break! Although that doesn't mean much to Null since she doesn't go to school... The sea is mobbed with elementary school students. Null runs away and meets a girl at the snow cone shop with a dazzling smile. She must have good communication skills!
7. E07: My Big Sister's Acting Suspicious!?
Jan 31, 2020
6 minutes
Peta comes home looking more worn out each day, but she won't say why. This is very suspicious... What on earth is going on...? Well, the only thing to do is to follow her!
8. E08: My Big Sister is Bugging Out!
Jan 31, 2020
6 minutes
The school is infested with mysterious creatures called "bugs". To deal with these continually multiplying bugs that eat everything, Peta has to use... a new weapon! The Pico Hammer Mk2!!!
9. E09: My Big Sister's Brutal With A Hammer!
Jan 31, 2020
6 minutes
The bugs keep reproducing. Even baiting them with dark fried rice and blow them up isn't enough to keep up. Hold up, are they merging into one giant bug! ? What secret plan is Null going to put into action against this tremendous regenerative power...?
10. E10: My Sister's There Because I Care For Her
Jan 31, 2020
6 minutes
It's strange. The city is unharmed after being wrecked by the bugs. Could it be unconscious bias? Apophenia? Was that day's turmoil all just a dream?
11. E11: Sister, Sister, Sister!
Jan 31, 2020
7 minutes
In a world with nobody in it. In a world all alone. Even Peta, the only one Null believed in, is gone. As Null spends more time thinking alone and reliving that terrible dream, she remembers that day...
12. E12: NULL & PETA
Jan 31, 2020
7 minutes
Epilogueeeee!!! Flying, going to space, fighting bugs, eating shaved ice and Peta disappearing—it's been wild, but even if it's a small one, this single step is a giant leap!
OVA: Slippery and Sticky! Big Sister Bikini Battle!
Bonus Content
6 minutes
In this bonus episode, Null & Peta find themselves in a trippy multinational pro wrestling match! Can the sisters defeat their foreign alter-egos? Can any of the alternate Petas actually cook!? Will the ref ever put a stop to this chicanery!?!?
Audio Commentary
Bonus Content
73 minutes
Azumi Waki (Null) and Reina Ueda (Peta) watch and chat about the series!
This content is only available in Japanese.
init_data: 0.0714, render: 0.0411

Steam Video

This content is only available in an online streaming format. More information about streaming videos can be found in the Streaming Videos on Steam FAQ.

About This Series

Genius girl Null suddenly lost her sister in an accident.
But don't worry!
Using her wealth of knowledge, she successfully rebuilt her sister as a robot!
However, after bringing her back she was a little different than before.
The story of Null and her Robot sister Peta will unfold in a disaster-filled comedy about sisterly love!
"Sis! Your plug came out!"

System Requirements

Windows
macOS
SteamOS + Linux
    Minimum:
    • OS *: Windows 7
    • Processor: Intel Core 2 or AMD equivalent
    • Memory: 1 GB RAM
    • Network: Broadband Internet connection
    • Storage: 200 MB available space
    • Additional Notes: Network Bandwidth of 5Mbps for 540p, 3Mbps for 360p.
    Recommended:
    • OS: Windows 10
    • Processor: Intel Core I3+ or AMD equivalent recommended for HD 1080p playback
    • Memory: 2 GB RAM
    • Network: Broadband Internet connection
    • Storage: 500 MB available space
    • Additional Notes: Network Bandwidth of 12Mbps for 1080p or 8Mbps for 720p.
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.
    Minimum:
    • OS: Mac OSX 10.7
    • Processor: Intel Core 2 or AMD equivalent
    • Memory: 1 GB RAM
    • Network: Broadband Internet connection
    • Storage: 200 MB available space
    • Additional Notes: Network Bandwidth of 5Mbps for 540p, 3Mbps for 360p.
    Recommended:
    • OS: Mac OSX 10.10+
    • Processor: Intel Core I3+ or AMD equivalent recommended for HD 1080p playback
    • Memory: 2 GB RAM
    • Network: Broadband Internet connection
    • Storage: 500 MB available space
    • Additional Notes: Network Bandwidth of 12Mbps for 1080p or 8Mbps for 720p.
* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
    Minimum:
    • OS: Linux Ubuntu 12.04 or later, SteamOS 2.20 or later
    • Processor: Intel Core 2 or AMD equivalent
    • Memory: 1 GB RAM
    • Network: Broadband Internet connection
    • Storage: 200 MB available space
    • Additional Notes: Network Bandwidth of 5Mbps for 540p, 3Mbps for 360p.
    Recommended:
    • OS: Linux Ubuntu 12.04 or later, SteamOS 2.20 or later
    • Processor: Intel Core I3+ or AMD equivalent recommended for HD 1080p playback
    • Memory: 2 GB RAM
    • Network: Broadband Internet connection
    • Storage: 500 MB available space
    • Additional Notes: Network Bandwidth of 12Mbps for 1080p or 8Mbps for 720p.

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