If that's the case, then everything makes sense.
At the very beginning, the unknown visitor who sent her the email 'Sevia?' was an NPC deduced by the Oasis, like an electronic ghost in the torrent of data, step by step guiding her to explore this instance.
First, leaving her a silhouette in the tavern to let her know of their existence, then sending a message to guide her to the prison, and then just now using flute sounds to help them escape danger.
'Sevia?' seems to be in some kind of program disorder, sometimes clear, sometimes chaotic, and the messages received at the guild base were unconsciously sent to her by the other party.
The other party must have been clear just now...
Did the other party want her to give them a hug?
But why wouldn't they appear before her?
The person to be hugged, is that really 'Sevia?'?
