Set four years after StrikerS, Nanoha finally has time to get off her feet. The story picks up with the next generation, starring Vivio Takamichi and her device, Sacred Heart.
Episode 1
Sacred Heart
Apr 3, 2015
On the magical world of Midchilda, Vivio Takamachi is a 10-year-old girl who lives with her adoptive parents, Nanoha Takamachi and Fate T. Harlown, and goes to school with her friends Corona Timil and Rio Wesley. To celebrate Vivio entering her fourth year of elementary school, Nanoha decides to give her her own rabbit-shaped Intelligent Device, which she decides to name "Sacred Heart" or "Chris" for short. Using her new device, Vivio transforms into her mage form, taking the adult Sankt Kaiser form she previously used during an incident several years ago, which comes as a surprise to Fate. As Vivio does some late night training with Nanoha, her Strike Arts instructor, Nove Nakajima, hears about a girl going under the name of the Sankt Kaiser Heidi E. S. Ingvalt who has been attacking various people. The next day, after Nove accompanies Vivio to visit her comatose friend, Ixpellia, she is challenged by the self-proclaimed Ingvalt.
Episode 2
Einhart Stratos
Apr 10, 2015
Episode 3
True Feelings
Apr 17, 2015
Episode 4
Brand New Heart
Apr 24, 2015
Episode 5
Surprise Attack
May 1, 2015
Episode 6
Matchup Duel
May 8, 2015
Episode 7
New Stage
May 15, 2015
Episode 8
Rival
May 22, 2015
Episode 9
Intermediate Championship
May 29, 2015
Episode 10
For Victory
Jun 5, 2015
Episode 11
Hegemon's Fist, Creator's Desire
Jun 12, 2015
Episode 12
Meaning of Ending a Match
Jun 19, 2015