Magical Girl Lyrical Nanoha ViVid (魔法少女リリカルなのはViVid) is a Japanese manga series written by Masaki Tsuzuki and illustrated by Takuya Fujima. It is part of Magical Girl Lyrical Nanoha franchise, taking place four years after the events of Magical Girl Lyrical Nanoha StrikerS. The series began serialization in Kadokawa Shoten's Comp Ace on May 26, 2009. An anime television series adaptation produced by A-1 Pictures aired in Japan from April 3 to June 19, 2015. A spin-off original anime project by Seven Arcs Pictures, titled ViVid Strike!, aired between October and December 2016, featuring a new pair of protagonists.
Plot
The series takes place four years after the events of Magical Girl Lyrical Nanoha StrikerS, during which magical girl Nanoha Takamachi rescued and adopted a young girl named Vivio, who is the clone 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.