Quote from Xiyamae;36714:
And in the end I laughed because she achieved her goal.
Edit: She wasn't pretending to have sex with the robot clone. She was trying to open a N.O. channel through his dad's brain. When it failed, she discarded him by stuffing him in the closet and replacing him.
She got her ass handed to her for the ultimate goal, which was to use his N.O. to draw out Atomisk and capture his power.
Raharu is a rogue space cadet (or just a space pirate) whose only goal is ultimate power. Her life span is longer than a human's, so she's already tried this before on Amarao when he was a kid. Since then he's organized Interstellar Immigration, a group that works to prevent her from interfering negociations between the humans and Medical Mechnica.
N.O. signals are somehow blocked by seaweed, which is why he keeps them on. Sweets are good for the brain, which is put in an unexplained negative situation with N.O. flowing in it.
Raharu fails, and goes back into space to keep searching for Atomisk.