It fits perfectly into the "Electro-Pop" and "Future Core" subgenres that have dominated the Vocaloid scene in recent years. Why It Still Hits Different
GUMI is tuned with a slight "mechanical" edge here, which emphasizes the theme of being a "monster" or something not quite human. The "Monster" Metaphor
The Chill of Isolation: Exploring "Snow Noise Monster" feat. GUMI
The "noise" represents the static that gets in the way of expressing true feelings to someone else.
What exactly is the "Snow Noise Monster"? In the context of the lyrics, the monster represents: