The tag alias #78899 zaako -> zako has been rejected.
Reason: Misspelled Japanese word 'Zako', meaning 'small fish', or slang for loser
Zako is a song by Hiiragi Magnetite, and the animation has developed into a trend/meme.
Spotify upload with the proper spelling: https://open.spotify.com/track/3Ml7kBYjc9t5IHDIOZz5Of
EDIT: The tag alias zaako -> zako (forum #462555) has been rejected by @DirtyDerg.
Updated