The Testament of Sister New Devil Storm!

High school student Toujo Basara’s life has taken a turn for the strange. Although hesitant about his father’s sudden decision to remarry, he can’t deny it comes with a couple perks—drop-dead gorgeous step-sisters…who also happen to be members of a demon clan! Mio Naruse is a Demon Lord and Maria Naruse her succubus servant. Chaos and passionate antics ensue as Basara gets acquainted with his new demonic siblings, trying to protect them from dangerous demon rivals and struggling to keep up with their lusty, devilish appetites. (Source: Seven Seas Entertainment)

Also known as

Shinmai Maou no Testament: Arashi! · 新妹魔王の契約者・嵐!

Format

MANGA · 30 chapters

Status

Finished

Genres

Action, Ecchi, Romance

AniList score

63/100

Main characters

Basara Toujou, Mio Naruse, Yuki Nonaka, Maria Naruse, Kurumi Nonaka, Zest, Chisato Hasegawa, Liala