I apparently mastered this one years ago before I went on my hiatus without ever realizing, lmfao.

♥ Name: Kyuu
♥ Card post: was at http://qu-ko.luminaskies.net/ and will return to http://dual-ism.net/, I'm currently in the process of putting it back together via the internet archive's last snapshot of it
♥ Character deck mastered: blackbird
♥ Character choice card: 10join20
♥ Mastery rewards: 10join20, dotharl15, apron05, 1 red crayon

And with that I master 10join, soooooo...

♥ Character deck mastered: 10join
♥ Character choice card: paternal05
♥ Mastery rewards: paternal05, predatory18, obscenity18, 1 yellow crayon
♥ Next collecting: paternal