A working scene at JBQH Studio located in Beijing's 798 art zone. [PHOTO BY KUANG LINHUA/CHINA DAILY]

He recalls this while sitting on a sofa at the group's 240-square-meter office in Beijing's 798 art zone. The walls are decorated with funny paintings, Zhu's chest X-ray and an electronic singing fish named Big Mouth Billy Bass. A stern-looking tabby languidly patrols its territory.

WeChat accounts bloomed in China in 2016. Many "big" accounts' posts got over 100,000 views each. So, WeChat became one of China's leading platforms for publicity and advertising.

Sun and his friends wanted to do something different. They named themselves Jubu Qihou Diaochazu (regional-weather investigation group) with the official English name, JBQH Studio.

"People have different weather inside. Some are deserts with blazing suns. Some are tropical rainforests. They have very different, concrete feelings inside," Sun says.

"We want to show our 'regional weather'. Our logo comprises an orchid, a fern, a dragonfly in a flask and a stalk of seaweed to evoke the atmosphere of a laboratory and the feel of a botanist."