魔法少女幸福論 (Mahou Shoujo Koufukuron)

Background
A little magic."魔法少女幸福論" was first uploaded on April 2, 2013 and is in the Hall of Legend. It is featured on the albums VOCA NICO☆PARTY, VOCALOID 超BEST -memories-, and アザレアの心臓.

The PV depicts an unnamed girl in high school who is a magical girl. Things go awry near the end of the song, but she is saved by "an invader of love".