Tomorrow's Talent show is held in London on September 15, a day before London Fashion Week kicks off. (Photo by Jiang Shan/China Daily)
"In the end, if it's just about a piece of clothing, it devalues this industry," he says.
So, where does he get his ideas? Perhaps, from locations, as is the case with Dolce & Gabbana's love letter to Italy's picturesque and culturally unique Sicily.
The last answer you might expect is National Geographic but, in declaring his admiration for "the amazing beauty of nature", his collection last season featured sea-wave-style ruffle sleeves, and the new collection for Spring/Summer 2017 comes from his observation of mantis and orchid.
"I just want to tell my own stories through design," he says.
And, while his clothes tell a story, his life story is worth telling too.
Born to a Mongolian father and Tibetan mother in Britain, Wun's background is diverse, even for a city like London that is known for its diversity.
He moved to Hong Kong as a toddler and returned to the UK at 16 to attend boarding school and then college. He speaks English, Mandarin and Cantonese fluently.
After graduating from the London College of Fashion in 2012, he launched his brand one year later.
"London is a good place for fashion-loving young people like me, without any background, to start up," he said.
Constantly travelling between London and Hong Kong, he appreciates London's welcoming environment.
"If a designer is a seed, it needs good soil."
Three years after starting his brand, Wun is still a one-man design team. None of his co-workers have a full contract because they all work part-time.
But he is not alone.
For two seasons he worked with On/Off, a company, like others in London, including TopShop-sponsored NewGen, that promotes young talent and helps present their collections in designer showrooms before making runway shows.
Some of these new designers made it onto the runway at the Tomorrow's Talent show on Thursday, one day before London fashion week officially began.
Reality is harsh for start-up designers, but hope roots in London that they can become the next Christopher Kane.