Board Thread:Theories Discussion/@comment-13376834-20130430230244/@comment-26871067-20150910211250

Servant of Evillious wrote:

Back to the Irina theory: Which Rin would Irina possess to use for these experiments? Why choose her over someone else? Ultimately, Irina being the Rin in FML also means she (or the medium) has to tie back to Wordplay/Clockwork Lullaby, going by FML's PV. My pet theory, which I feel there's no way to confirm or deny just yet, is that the single child from the failed fifth project was a Rin, and this Rin is Irina's first medium.

She would be very young for the time of the experiments, probably 6-8 years old (depending on the time frame between projects, of course) - Irina's first attempt to take over someone to use as a medium, so she's starting small.

It's very speculation-based, but it seems possible and actually sort of likely that the mother would not be allowed to raise her child - no one intended to allow Meta to raise Hansel and Gretel, though to be fair she was a criminal.

Her being taken from her mother could potentially put said Rin (assuming it would be a Rin, of course) in the custody of the scientists who created her, setting her up to sing Wordplay before being possessed and used as a medium by Irina.