Blue

This is both my favorite YOASOBI song and favorite music video I have ever seen (outside of maybe Shelter). The song itself is great, with a really infectious chorus and a section that strips down the melody to focus much more on the vocal performance (which is my favorite part of the song). Focusing more on the music video, it has an incredibly unique visual style, mixing 3D puppeteering with small amounts of live action that blend together well and don't clash in the slightest. The characters shown have a really strange design, combining features of animals with more human proportions (not in the furryway). Really just overall a great song, a great MV, and a great time.