According to the official blog, mangaka Minekura Kazuya
had a tumor surgery and left the hospital. She was diagnosed as having an ameloblastoma
and had the whole right maxilla removed. She has recovered the health but it will take long until she can resume working on manga. She permanently lost the skin sensation of the right half of the face and has a great difficulty in eating, drinking and speaking. She thanked the fans for sending Senbazuru
origami, which filled her hospital room and encouraged her when she was suffering from the pain and the distress.
She lost her whole uterus in 2007.
Source: Minekura's blog