From 1989 to 1990, Sigh was called Ultra Death. Dr. Mikannibal is the group’s singer since 2007. She also plays saxophone and sings with her husband. At the Inferno Metal Festival in Oslo, she was pregnant. On her stomach it has been written “Baby’s In Here”. Dr. Mikannibal has a doctorate in physics from the University of Tokyo. She is now a professor. From 1999 to around 2006, she also played in a melodic death thrash metal band named Providence.