I'm currently checking this map. It was bubbled until a few days ago, before an update (self pop). According to some english wiki page, there should be 3 artist, but it's nothing really official.
I'd prefer to have an official metadata source before I or someone else rebubbles it. Thanks!
I'm especially not sure about romanizing the artist (the name order) and should I write the title as all uppercase or something ( https://www.google.co.kr/search?q=klono ... aR6hrgM%3A ) (Plz don't tell me I should do that...)