The Ost used is: ThatSaxyguyMike’s “Half Steps” The Eevee Ep: https://youtu.be/ZYl5rpdagAo?si=0DKYGfjnsfvcCd7G I love the ost and I cant help but have it on loop whenever I come across the mix.

Art by 526 on Pixiv, music by semiquaver on YT