This was really fun to chart, at first I didnt like this song very much but it grew on me.

Once Upon a Dream - Wansu Apon a Doriimu - ワンスアポンアドリーム by YASUHIRO(康寛)
Vocals: Wonderlands x Showtime + Kagamine Len
Variant Vocals: Kagamine Rin
Chart by AegbGo