This goddess estranges he
This goddess estranges herself from one of her brothers when that brother kills a food goddess who vomits out a feast. This deity's necklace is used to produce five women during a contest in which this goddess produces three men from her brother's sword. The sound of laughter at another goddess performing a striptease atop a bathtub convinces this goddess to sneak a peek, only to be dazzled by her own reflection in a mirror and dragged out of a cave. That incident occurs after this goddess is insulted by her impetuous brother Susanoo ["SOO-sah-NO-wo"]. This goddess's direct descendants are the emperors of Japan. For 10 points, name this Shinto goddess of the sun.