The Testament of Sister New Devil (Episode 1) – The Day I Got a Little Sister
Warning – This post is Not Safe For Work! Proceed with caution!!!

When Basara’s father suddenly remarries, he got a new little sister or two in the union. They all move into a new house together, but the new wife is nowhere to be seen. Then Basara’s father went away on business!
The Testament of Sister New Devil (Episode 1) – The Day I Got a Little Sister
What happened?
So, Basara found himself alone with his two new sisters, Mio a fiery redhead who decided to wake him by grinding on top of him, and Maria a rambunctious young girl with a playful nature. It’s odd enough that Basara has never met his new mother, but when his father left for business, things took a turn for the worse.
Maria transformed into a demon, more specifically a succubus and threw Basara across the room with a magic attack. She explained that demons and magic are real and that they tricked his father so that they could use his home as their base. Next, they plan on wiping Basara’s memories and sending him to live with relatives. Only it doesn’t work!
Basara revealed that he was a part of the hero faction and tells them to leave. He’s furious that they would use his father that way. However, Basara’s father soon contacts him and explains that he already knew who they were and he took them in for a reason he’s not yet willing to explain. Now, Basara will have to track them down and bring them home before something bad happens!

What did you think?
This was a pretty standard opening episode. We’re introduced to quite a few characters and at this stage, they are all pretty flat with the exception of Maria who was hilarious. There are a few notable ecchi moments, but nothing to write home about at this stage. When Basara revealed that he was a hero, the story definitely became more interesting. It was fun but failed to live up to the hype that surrounds it. Let’s see what the rest of the season has for us. Expect not safe for work images beyond this point!
Episode highlights
Accidental Encounter!



Rise and Shine!



Who’s Hungry?


Succubus!


Demons Attack!


Other posts in the series
- Season One
- Episode 1 – The Day I Got a Little Sister
- Episode 2 – First Contract Between Servant and Master
- Episode 3 – Reunion and a Gap in Trust
- Episode 4 – Until Sadness Reaches Zero
- Episode 5 – A Little Sister’s Morning Demon Lording
- Episode 6 – Bearing Growing Emotions
- Episode 7 – The Depths of Love and Hatred
- Episode 8 – Erotic Succubus Out of Control
- Episode 9 – Merits and Demerits of Master and Servant
- Episode 10 – Plaintive Betrayal
- Episode 11 – Espionage… What Lies After
- Episode 12 – For This Night, This Moment
- OVA