Oka
    Oka
    Alternate names: 67 (やめる), 67 (Yameru), a.m., a.m. (おか), a.m. (Oka)
    Birthday: Unknown
    Given name: おか
    Pixiv: http://www.pixiv.net/member.php?id=41875
    Tumblr: http://okadayo.tumblr.com
    Twitter: https://twitter.com/okazakiokaa
    Website: http://okaaaa.jugem.jp/
    Gender: Female
    Circle: a.m.
    Also illustrates light novels