befriend (v.): to use mecha-class beam weaponry to inflict grievous bodily harm on a target in the process of proving the validity of your belief system.
What do you get when you take the tropes and archetypes most commonly associated with hotblooded super and real robot shows and use them to make a mahou shoujo (magical girl) show instead? You get Mahou Shoujo Lyrical Nanoha (nicknamed by some in the fandom Ma Hou Shoujo Lyrical Nanoha, or "Demon Cannon" Girl Lyrical Nanoha for some of the pyrotechnics that get thrown around). And when you combine footage from that show with music from JAM Project,a group who is most well known for producing hotblood songs for several big name anime and games (SRW comes to mind), you get this.
Anime: Mahou Shoujo Lyrical Nanoha (all three seasons, mostly the 3rd).
Song: Jam Project: Skill
And a second video. Both of the main seiyuu (Yukari Tamura and Mizuki Nana) are
great singers, with the former performing all of the ED songs, and the latter performing all the OP and IN songs for the series.
Series: MSLN the Movie 1st
Song: Mizuki Nana: Tenkuu no Canaria (Canary in the Sky, Tales of Symphonia OVA OP)