Definitely not. Lookism is a work of fiction. The plot and scenarios were crafted by the creator to tell an interesting and captivating story, not drawn from real events or people.
Lee Seong-hoon was a Korean speed skater. He was born on March 6, 1988. He was 177cm tall and weighed 70kg. Lee Seong-hoon won the gold medal in the men's speed skating group departure event at the 2018 PyeongChang Winter Olympics and the bronze medal in the men's speed skating group departure event at the 2022 Beijing Winter Olympics. He was an outstanding athlete who had won seven medals in the Olympics, including two gold medals, three silver medals, and one bronze medal. Lee Seong-hoon started his career in short track speed skating, but he was not selected for the national team in the 2009 domestic qualifiers, so he switched to speed skating. He won fifth place in the 5000m sprint at the world championships. The above was the basic information about Lee Seong-hoon and a brief introduction of his sports career.
In the absence of knowledge about the 'Big Mouth Vader Johan' story, Big Mouth could be a descriptive name for a character who is overly chatty or has a unique oral feature. Vader might be related to the idea of a strong, authoritative figure, similar to the Star Wars character Darth Vader. Johan might be a common name for the protagonist in this story. It's possible that these three elements - the talkative Big Mouth, the powerful Vader - like figure, and Johan - interact in various ways within the plot of the story, but without the story itself, it's hard to be certain.
Irregular manhwa lookism often features unique art styles and unconventional character designs. It might also have unexpected plot twists and a focus on social issues.
The full content of Lookism manhwa is quite extensive and involves various storylines and character developments. It's a complex and engaging narrative.