>>274
>Hope and Lightning have a sister-brother relationship
No, Hope used Lightning as a mature figure, Lightning used Hope as a little sibling figure. Until they realized they were just running away from their problems.
The pseudo sibling/maternal confusion ended when Lightning and Hope told each other their feelings in the sewers of PalumPolum.
It wasn't "sibling esque" love that made Hope so determined to save Lightning in XIII-2. It was more.