Young-soo (also spelled Young-su or Yeong-su) is a popular Korean unisex given name, most commonly used for boys, with meanings often derived from Hanja characters as "eternal/forever" (Young) and "outstanding/excellent" or "long life" (Soo). It signifies "perpetual beauty" or "keeping prosperity".
I Searched it on Google, maybe coz of it's meaning?
Also you're Korean? woah

young-soo imo isn't a real name...it means apology so i wonder if he picked that name? i myself named one of my characters young-su tomayto tomahto. maybe it is a real name but as a korean ive never actually met someone w that name