Even 10 months after the Jindo Puppy and Tiger pets have been introduced there is still no successful tame on Ken. A few days ago I found my 5th Jindo Puppy - failed to tame it again (this time a lvl 72 CHA mage tried it). I've heard of many other unsuccessful tame attempts - time to share some facts about Jindo Puppies....
Jindo Puppy
Level: 5
HP: 30 / 5HP regeneration every 5 secs!
Minimum CHA requirement: 18 CHA to tame
Maximum tame attempts: 149 (full after 149 eye-meats)
Tame with: Floating Eye-Meat
The 5HP regen every 5 seconds makes it tough to tame. Usually a hit without a weapon does 1-2 dmg, unmorphed and hasted you can do around 5 hits every 5 secs - thats 5-10hp dmg - so you need to punch it often and quickly because you'll not be able to tame it if Jindo's HP is higher than approx. 5HP!
There is a rumor that CHA elven have the highest chance to tame it - not sure if this is true but I can confirm that high CHA royals and mages all failed so far.
I hope this info helps to tame a Jindo Puppy someday. If you know anything else, e.g. exact hits, feel free to post it.