The South Korean's third-place finish at The Renaissance Club against a field containing 14 of the top 15 in the Official World Golf Ranking will have been a surprise to some as he entered the week outside the top 50, but he has since gone on to prove he is very much a force to be reckoned with.
Within three months, he was a two-time winner on the PGA TOUR and has also represented the International team at the Presidents Cup, winning two points at Quail Hollow.
But it is not just fond memories from inside the ropes that endear Scotland to Kim, with the 21-year-old loving his time in Golf Country.
"I stayed in Edinburgh last year, the city, a little far from the course, but got to see all the history around the place," he said. "The fresh air, I could live here. It's absolutely amazing.
"This is where we have some of the best golf fans through the year. All of us players love to come back here and play golf.
"I still like flying under the radar and I find it very fortunate when people do recognise me. I'm happy to be back and hopefully I can put on a good show for all of the fans.
"This is where it started for me here, finishing third and edging close to that temporary status (on the PGA TOUR). This is really where it all started and it's really nice to be back. I love Scotland. Obviously have great memories last year and I'm super happy to be back.
"I wasn't expecting a top-three finish, I'm not going to lie to you. I had limited events and I was trying to make the most out of it. For me at that time, that top-three finish was an unreal feeling.
"So to kind of be able to achieve that, it's just amazing to see the way I've done it. It's really, really cool. I wasn't expecting it but that really gave me the confidence of seeing all of last year and the autumn, this is really where it sparked for me."
One man Kim will have to beat if he is to claim a first Rolex Series win this week is World Number One Scottie Scheffler, who has recorded six consecutive top fives.
Kim is six years Scheffler's junior but revealed the Major Champion is one of his best friends on Tour and has also acted as a mentor in his meteoric rise.
"He's a good friend of mine," he said. "One of my closest friends on Tour. He's given me a lot of advice.
"It's amazing how far we go back. It's not many years but I played with him before, to be able to kind of build that friendship, and he's Number One in the world, he's been playing so good for so long now and continuing to do so.
"For me coming up, to have someone close like him with the experience that he has, it's really unbelievable. At home we work out together, we play a lot of golf. So I'd always ask him a lot of questions, and he's very, very nice to answer with sincerity and I'm very lucky.
"I've learned not only so much about my golf game but outside of life, which I think is very important. So I'm fortunate to do that."