Ah, OK, thought Kiyoshi.
Now that Connor had said so, his accent did definitely sound Irish. At the same time, though, he spoke fluent Japanese, and he was also seemingly well-acquianted with Satoshi.
And, who is this 'Coo Coolan' guy?
Connor had said the name in a way that implied he thought Kiyoshi might know it, but it was obviously an Irish name. Even with his limited knowledge of Irish culture he could tell that. So, why would Connor expect the name to be familiar?
Perhaps it was one of his father's friends, that he hadn't met in Kiyoshi's world due to the different path he'd taken.
"No, sorry, I don't know of 'Coo Coolan'. Is he one of my father's friends in your universe? My father never met him as far as I know, we don't have any Irish friends. My brother's girlfriend is Cornish, though.
And, yes, I have met Satoshi. He got corrupted by Angra Mainyu, though, and my Aunt Rider has gone off to try to help him. I hope she's OK...."
Then, Kiyoshi had a sudden thought.
Hmm, what if 'Coo Coolan' is an Irish hero.
After all, Satoshi's mother was a heroic spirit, as was Sakura's father, so it wouldn't be surprising to find another Heroic Spirit who had become a parent. And that would certainly explain why Connor would expect him to be known.
Oh, thought Kiyoshi, realising he may have inadvertantly insulted Connor.
"Oh, wait, sorry, is your father actually an Irish hero? I don't really know much about Irish mythology...", Kiyoshi said.