The series takes place four years after the events of Mahou Shoujo Lyrical Nanoha StrikerS, during which, magical girl Nanoha Takamachi rescued and adopted a young girl named Vivio, who is the reincarnation of the Sankt Kaiser, Olivie Segbrecht. After entering her fourth year of elementary school, Vivio is given her own intelligence device, Sacred Heart, and gains the power to transform using her adult Sankt Kaiser mode. She soon comes across a girl named Einhart Stratos who, similar to Vivio, is the descendant of another Sankt Kaiser ruler, Claus G.S. Ingvalt. As Einhart becomes determined to prove her fighting style is the strongest, Vivio befriends her and together with her friends, enters a martial arts tournament where they fight against various magical opponents and learn more about their past lives.
(Source: Wikipedia)+ More
Characters & Voice Actors

Stratos, Einhald
Main
Noto, Mamiko
Japanese
Vivio
Main
Mizuhashi, Kaori
Japanese
Agito
Supporting
Kameoka, Mami
Japanese
Alpine, Megane
Supporting
Nakahara, Mai
Japanese
Alpine, Lutecia
Supporting
Kuwatani, Natsuko
Japanese
Arpinion, Chantez
Supporting
Asumi, Kana
JapanesePromotion Videos

PV 1

CM 3

CM 2

CM 1
Recommended for you
Fresh Precure!
TV
25m
K: SEVEN STORIES "SIDE:BLUE - Sirius - "
Movie
61m
One Piece: Adventure of Nebulandia
Special
106m
Tetsujin 28
TV
25m
Noir
TV
24m
Birdy the Mighty: Decode OVA
OVA
27m
Zoku Touken Ranbu: Hanamaru
TV
24m
Sword Art Online
TV
23m
Tokyo Ghoul: "Pinto"
OVA
24m