Oh right, how do you write your name again, Trainer-san? Trainer-nim in Korean. The translation here uses context-equivalent honorifics.

Huh? Oh, yeah...

S-So you don't remember it, huh... My name...

Oh, in hanja, you mean. They all use hanja in the original KR text, but the translation has been tweaked to reflect Dia's cultural context .

Tch.

I'll message it to you later on Line.

Let's see... Surname's Ha (河), the same Ha as the kawa (河) for your kanji for river... 　 Original uses a Sino-Korean word as an example, "the ha in the word hacheon (river)."

I can't quite understand with words alone, so...

...might I trouble you to write it down, please?

Write it here.

I need to write your name down by hand, but I find myself unable to remember all of a sudden...

Oh well, it is what is is.