The Testament of Sister New Devil Season 1

Right now you can watch The Testament of Sister New Devil Season 1 on and — and it is funnier than its reputation suggests. Across 1 season, the show has had time to find its rhythm and keep it. Its 8/10 TMDB score, built from 361 ratings, reflects a title that consistently delivers. Yuichi Nakamura leads a cast with real comic timing. There is no real reason to keep putting it off.

The Testament of Sister New Devil Season 1 arrived without much fanfare and built its audience the hard way — through word of mouth. The Testament of Sister New Devil Season 1 does what great comedies rarely manage — it is actually funny, consistently, across the whole run. Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Yuichi Nakamura and Ayaka Asai lead a cast that brings real weight to the material. It was aired in 2015. The timing in The Testament of Sister New Devil Season 1 is precise enough that even the throwaway lines land on a second watch. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

For viewers who want something light without wanting something stupid, The Testament of Sister New Devil Season 1 respects your intelligence. It has built its own audience without needing a direct comparison. Short enough to finish in a weekend, substantial enough to feel satisfying. Yuichi Nakamura anchors an ensemble with real chemistry. Genuinely funny, consistently, across the whole run.

🎬 The Testament of Sister New Devil Season 1 — Episode Guide

The Day I Got A Little Sister

2015-01-07

Thanks to his father's sudden remarriage, Toujou Basara finds himself with two beautiful new step-sisters. Their names are Naruse Mio and Maria. Mio wakes him up in the morning, while Maria stands in the kitchen wearing a suggestive outfit...

First Contract Between Servant And Master

2015-01-14

As daughter of the former demon lord, Mio's foster parents were slain by powerful demons after her life. Still seeking to slay her, Basara reveals himself as a member of the hero clan--an enemy of the demons--and vows to protect Mio as a member of his family.

Reunion and a Gap in Trust

2015-01-21

Basara's childhood friend Nonaka Yuuki warns him not to get involved with Naruse Mio any longer. She is a fellow member of the hero clan, and the one charged with observing Mio. She claims that Mio will bring great disaster, but Basara proclaims that he will protect Mio as a girl on his own.

Until Sadness Reaches Zero

2015-01-28

Basara suffers a deep wound in the battle against the white-masked man after Mio's power. Mio regrets getting Basara involved, and challenges the white-masked man to battle on her own. Meanwhile, in order to protect Mio, Basara resolves to use the "forbbiden art" he sealed away after the events of h...

A Little Sister's Morning Demon Lording

2015-02-04

With the battle against the white-masked man settled, they returned to their bawdy daily life. Basara wakes up with his hand groping Maria's butt, he runs into a naked Mio when he enters the bathroom, and Yuki sneaks into the bath with him. The master-servant pact lying at the heart of everything. A...

Bearing Growing Emotions

2015-02-11

Basara goes on a date with Yuki. Unaccustomed to the shopping center, when the two of them are overwhelmed by a clerk's sales talk, Mio stops following to rescue them.

The Depths of Love and Hatred

2015-02-18

Basara leads Mio to higher peaks as he pursues pleasure with the use of syrup. With their master-servant pact reaching a new level, they both bring their full might to face the ones trying to eliminate Mio: Takashi and Kurumi.

Erotic Succubus Out of Control

2015-02-25

Ten days pass since the battle with Takashi and others. Although the battle ended with reconciliation, Yuki returned to the hero's village. ...or she was supposed to, but when Basara returns home, he finds Yuki in an apron!

Merits and Demerits of Master and Servant

2015-03-04

Basara and Yuki begin the ceremony to form their pact. Clad in a bustier and garter belt, Yuki was raring to go for it, but she refused to forge the pact normally, and suffered the same succubus curse as Mio.

E10

Plaintive Betrayal

2015-03-11

Mio has been captured by Zolgia following Maria's betrayal. Basara too is captured by Lars and brought to Zolgia's mansion. Lars' goal is to exchange Basara for Mio. He explains that he's only doing his duty as Mio's observer, but negotiations fail, and Zest slays him.

E11

Epsionage... What Lies After

2015-03-18

Strength as a human, the power to rend evil--With the power inherited from his father, Tojou Jin, Basara faces off against Zolgia. Basara is driven by the desire to protect his precious family. That desire gives him strength, and even as Zolgia pushes him to the edge, he rises without breaking. Howe...

E12

For This Night, This Moment

2015-03-25

Everyone is trapped inside the body of the demon realm's most dangerous creature, a beast capable of infinitely multiplying until it swallows the entire world. Dimensionally cut off, the only remaining option for Basara and the others is to completely eliminate this dangerous creature's vital core.

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