Board Thread:Off-Topic Discussion/@comment-35301431-20150119202849/@comment-30602727-20150320020736

It's a matter of knowing when they released. It's a good idea to keep track of the months and years. It's how I often try to remember. I'm still trying to remember the birthdays, but that isn't turning out well lol

LEON, LOLA (Jan), MIRIAM (Jul), MEIKO (Nov 2004), KAITO (Feb 2006), Sweet ANN (Jun), Hatsune Miku (Aug), Kagamine Rin, Kagamine Len (Dec 2007), Prima (Jan), Camui Gackpo (Jul 2008), Megurine Luka (Jan),GUMI (Jun), SONiKA (Jul), SF-A2 miki, Kaai Yuki, Hiyama Kiyoteru, BIG AL (Dec 2009), Tonio (Jul), Lily (Aug), VY1 (Sep), Ryuto, Nekomura Iroha (Oct), Utatane Piko (Dec 2010), VY2 (Apr), Mew, SeeU (Oct), Tone Rion, OLIVER, CUL, Yuzuki Yukari, Bruno, Clara (Dec 2011), IA (Jan), Aoki Lapis (Apr), Luo Tianyi (Jul), galaco (Aug), MAYU, AVANNA (Dec 2012), YUU, KYO, WIL (Jun), YANHE (Jul), YOHIOloid (Sep), MAIKA, Merli (Dec 2013), Macne Nana (Jan), kokone (Feb), anon, kanon (Mar), flower (May), Tohoku Zunko (Jun), Rana (Sep), Chika (Oct 2014), CYBER DIVA, Xin Hua (Feb 2015)

Akikoloid-chan, Ueki-loid, Kobayashi Matcha, Masaoka Azuki..... and it seems Anri Rune is also private, but I'm not 100% sure