The name of the woman important to Ardis was also mentioned so if next chapter, she's referred the same way, then that's probably her. Her name was Ruu. Its a shame I hven't found the name of the goddess/antagonist (she was referred as a female general though). Back to Ruu, a little add-on on how she was mentioned in the WN, credits to the translator. (This was moments where Eliot was using his trump card/teleportation magic on the unaware Ardis)
「Ardis, both Sark and I were always regretting. 」
「What’s so sudden? 」
The sudden words even though they’re in a battlefield made Ardis question back.
「That time, when Ruu went out by herself……」
Hearing the name from Elion, Ardis recalled bitter and regretful memories.
「……It’s not your fault. She chose to do it herself. 」
「Even so. We should’ve stopped Ruu even if it meant forcefully. At the very least, one of us could’ve tagged along with her. 」
As Ardis felt uncomfortable talking about it with Elion’s face showing pain from his leg, he tried to dodge the topic.