SPOILER WARNING: Ender Quintet plot details follow.
Keikoa Amaauka was the childhood lover of Han Fei-tzu.[1] She was first mentioned in Xenocide.
History
Early Life
In her childhood, she had close relationship with Han Fei-tzu, but it was broken off when she and her father were sent away from Path by Starways Congress.[1]
Xenocide
When she arrived on her destination world of Ugarit, she contacted Fei-tzu, and told him that Godspokens' gift was only a genetic manipulation similar to OCD.[1]