This is a official champion guide created by LMS. They would choose pro players who are good at those champions and make an interview/guide.
The Plat-1 player was not K’s real friend, it’s a meme from a Taiwanese forum. It took place at a thread discussing counterpicks in top lane: A plat-1 player named Swamp0815 claimed that there’s no counterpick against his top Gangplank. he played over 70 games this season, and he had a 58% winrate.
Swamp0815 was mocked by another player called Fishpill, so he got mad and asked for his elo. Unfortunately, Fishpill is a well-known challenger in TW server since S5. Swamp0815 just flamed the wrong person, but he still insists that there’s no counterpick against Gankplank, and he claimed he would reach challenger IF HE WANTS TO TRY HARD.” From then on, TW players called him as 58GP.
Watch the video