How do I make a voice like in this song? (dunno how to describe voice)

[juuuu]

it’s a Vocaloid song sung by Hatsune Miku I tried to cover it using a different voicebanks Unfortunately idk how to make vocals like they did Any ways to do it?

(Audio-only reprint)【初音ミク】哂う似蛭【のような何か】