Even until the end, Noah didn't know the true age of his Angel Companion, because even his parents were unaware. When they started exploring, Ophelia was already quite famous in Heaven as the second generation of Blazing Sky.
Noah didn't really care about this though. After all, they were both of the Longevity Species; what's a difference of a few hundred years anyway? As an Ancestor Dragon, he didn't mind.
Moreover, it was confirmed that Ophelia had only him as a partner, and that was enough. There was no need to mind a mere age difference of a few centuries.
"Who captured whom in the end?"
But, Noah, who appeared carefree, couldn't help but ponder after sending off his parents.
All this time, Noah believed it was his own charm that won over the heart of a Six-winged Seraph. But now, suddenly knowing that Ophelia had a few hundred more years of experience than him made it hard for Noah to remain that narcissistic.
