This mysterious blue round mirror is the most formidable defensive artifact in Senior Sister Yu Die's possession.
It is just one step away from reaching the Upper Grade True Artifact level, extremely valuable.
Even many early-stage and middle-stage Celestial Realm cultivators can't produce such a defensive item of this grade.
It's because she, as the Sea Spirit Hall Saintess, holds a noble status that she's granted such an artifact to protect herself.
After summoning the mysterious blue round mirror, the Sea Spirit Saintess settled her heart and spoke out to Lu Ye.
"You hail from the Northern Territory, how can you have... such an astounding sword technique?"
That ultimate Sword Qi she felt was akin to a Middle Grade Divine Technique!
Lu Ye, looking at the Sea Spirit Saintess's second remark, calmed down once more.
