This pink-haired girl's movements are very similar to Cirrus's, as if their blood was the same or similar... It's often easy to mistake someone because you don't know much about him, and the orange-haired guy should wait for the girl to tell him.
Same, I was thinking she was his stepsister too. Like the father has remarried so many times, it'll make sense a sibling would be born too!
This pink-haired girl's movements are very similar to Cirrus's, as if their blood was the same or similar...
It's often easy to mistake someone because you don't know much about him, and the orange-haired guy should wait for the girl to tell him.