Same way I reacted when someone spoke fluent Japanese to me in person I was so much younger then
Ahh...! So...So cool!!That's right?Freut mich! I'm Bismarck, nice to meet you.
"Freut mich" also means "Nice to meet you".The EndI knew it! Cool! So cool!!That just means "Thank you"FufuYes! U-um! Bismarck-san are you perhaps a battleship?Thank you [very] much!