While I'm not too amazed by the song itself, I'm pretty impressed by how many different vocal persons they managed to cramp in it!
i☆Ris, Afilia Saga, ALI PROJECT, Kanako Ito, Sumire Uesaka, Yui Ogura, OLDCODEX, Eri Kitamura, Akira Kushida, Minami Kuribayashi, Maon Kurosaki, GRANRODEO, Gero, Mikako Komatsu, PSYCHIC LOVER, ZAQ, Konomi Suzuki, Kenichi Suzumura, Ayana Taketatsu, Yukari Tamura, Minori Chihara, ChouCho, Zwei, HIROAKI TOMMY TOMINAGA, Megumi Nakajima, Nanamorichu☆Gorakubu, nano.RIPE, Yuuka Nanri, Iori Nomizu, Yoko Hikasa, Maiko Fujita, Sachika Misawa, Nana Mizuki, May'n, YUIKAORI, Ray
I don't know a single one of these persons except for nano.RIPE
Also: Kumi
![](https://www.head-fi.org/attachments/1014117/)