Mami Watanabe has a Series Composition credit on Phantom Quest Corp.
series composition
OVA / 1994
script (eps 5-6, 8, 10, 16-18)
TV anime / 1986
screenplay
OVA / 2002
OVA / 1987
script
Movie / 1987
TV anime / 1987
planning
OVA / 1993
OVA / 1999
Short TV anime / 1985
OVA / 1990
TV anime / 1988
OVA / 1992
Short TV anime / 1983
Movie / 1983