新妹魔王の契約者〈テスタメント〉
Production IMS
Kadokawa Shoten, AT-X, Nippon Columbia
Running into your new stepsister in the bathroom is not the best way to make a good first impression, which Basara Toujou learns the hard way. When his father suddenly brings home two beautiful girls and introduces them as his new siblings, he has no choice but to accept into his family the Naruse sisters: busty redhead Mio and petite silver-haired Maria. But when these seemingly normal girls reveal themselves as demons—Mio the former Demon Lord's only daughter and Maria her trusted succubus servant—Basara is forced to reveal himself as a former member of a clan of "Heroes," sworn enemies of the demons. However, having begun to care for his new sisters, Basara instead decides to protect them with his powers and forms a master-servant contract with Mio to keep watch over her. With the Heroes observing his every move and the constant threat of hostile demons, Basara has to do the impossible to protect his new family members. Moreover, the protector himself is hiding his own dark secret that still haunts him to this day... [Written by MAL Rewrite]
Opening
Ending
Naruse, Maria
Main
Fukuhara, Kaori
Japanese
Naruse, Mio
Main
Asai, Ayaka
Japanese
Nonaka, Yuki
Main
Bridcutt, Sarah Emi
Japanese
Toujou, Basara
Main
Nakamura, Yuuichi
Japanese
Adomiras
Supporting
Aikawa, Shiho
Supporting
Zougou, Saeko
Japanese
Donoue, Shouhei
Supporting
Etou, Hiroki
Japanese
Hasegawa, Chisato
Supporting
Asakawa, Yuu
Japanese
Hayase, Takashi
Supporting
Inoue, Gou
Japanese
Leohart
Supporting
Okitsu, Kazuyuki
Japanese
Mio's Father
Supporting
Itatori, Masaaki
Japanese
Mio's Mother
Supporting
Mina
Japanese
Nonaka, Kurumi
Supporting
Nomizu, Iori
Japanese
Sakaki, Chika
Supporting
Misato
Japanese
Sakazaki, Mamoru
Supporting
Tsuda, Kenjirou
Japanese
Sheila
Supporting
Nishihara, Kumiko
Japanese
