after some help and validating yeah it seems like anything past / in the original title is just the translation, best bet would be the following if you agree:
Title: Aじゃないか feat. 初音ミク・鏡音リン
Romanised Title: Isn't it "A" feat. Hatsune Miku & Kagamine Rin
https://www.youtube.com/watch?v=LUch7N9Gw28
https://www.bilibili.com/video/av581584030/
https://pinocchiop.com/news/page/5 <- for suggesting song title