In Episode 9 of Steins;Gate, why did Feris's message affect the past?


Whose phone was connected to the microwave? Who did her message reach to
change it, and if she kept it a secret, how did they know whose phone to use
on the microwave? Am I forgetting/missing something?




The mistake you're making is that the phone attached to the microwave is
irrelevant—any phone is okay.

The phone that matters is the phone that the microwave phone sends the message
to.

The message is sent to [**Faris's father, Yukitaka Akiha**](http://steins-
gate.wikia.com/wiki/Yukitaka_Akiha).

The reason could be classed as spoilers, so make sure you watch the show
first.

> Yukitaka died in a plane crash several years before the events of
> _Steins;Gate_. He was the only victim of the crash. However, his daughter
> later uses a D-Mail to save his life, by making him believe she was
> kidnapped and forcing him to take the bullet train instead.

