There are some formalities to complete before the attacking midfielder can play for Cardiff.
He is currently playing for South Korea in the Olympics and after that he must fly home while his paperwork is sorted, as Malky Mackay explains.
“Kim doesn’t automatically get a work permit, but we are dealing with that in the right way,” said Bluebirds boss Malky Mackay.
“He must be out of the country when an application goes in, which is why he will go home after the Olympics.”
The player himself told the club’s official website: “Cardiff City was always my preferred choice, despite interest from other clubs.
“I think the tactics and the vision here will suit me and that is why I wanted to come to the club.
“I enjoy playing with confidence.
“When I am confident I score goals and hope to score a lot of goals for Cardiff.
“I still have a lot to learn, but feel I can offer my technique and passing ability to the team.
“Playing in the Championship will be very different to the J-League.
“I will learn a lot from playing in the Championship, but also feel I can use what I’ve learned from Japan and bring that to the team as well.
“Signing for Cardiff will have a positive impact on my play for South Korea.”
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