Their father was killed by the conspiracy of cunning retainer Riyu, and their pregnant mother Niigaki was killed and infant taken away by Kumakimi while trying to protect her and escape from the pursuers.
奸臣・利勇（りゆう）の策略により父を殺され、追っ手から身重の母・新垣（にいがき）をかばいながら逃げる途中、阿公により母を殺され胎児を奪われる。