User blog comment:B214/Talk About What You Want! 3/@comment-16281343-20150223194918/@comment-24502975-20150223222803

Doesn't the recent SS about Xenovia take place AFTER volume 19?

I interpreted the quote as "I dare you to show yourself in front of me", making it more like a challenge than a threat.

Gasper not being able to participate can point to Sona's RG as well, since he was taken out early without doing anything.

Every quote there can point to Sona's peerage, but I'm not sure about the revenge thing... Perhaps Bilingual was humiliating to the Sitri girls?!