She is in her Gaikotsu Gakudan to Riria outfit. I swear, in Project Mirai DX, that song is Hard with a capital H. If there was a Super-Hard level for that song, I would rather touch a slimy, but not poisonous, frog! But the song and music video are good, and her costume is pretty cool. She looks really good in it when she is a cartoon instead of an anime(even though anime is a type of cartoon). #GaikotsuGakudantoRiria#Miku#Riria#Cartoon#sun#moon#sunset#pretty#dance#Red#Green#Purple#HatsuneMiku