[quote=@Raineh Daze]
<Snipped quote by IncredibleBee>

A) Causality
B) Knew that, read it
C) The point's more 'how it's going to get from Hanako to Guts'. Because there's no reason either of them would interact. O_o
[/quote]

Causality will ensure it gets back to Guts.
Also, she's trying to return his trinket. That's a reason to interact.