In 2005, while working overtime at an advertising agency, the designer fainted due to severe lumbar pain from sitting on a hardwood chair for a long time. After waking up, he found that 80% of his colleagues around him were troubled by neck and shoulder pain - this became the opportunity for the birth of "Shujing".

With the original intention of "making office work more comfortable", he visited furniture factories all over, but couldn't find an office chair that balanced support and softness. So he rented a small workshop, personally disassembled 37 different types of seats, and repeatedly tested the spring elasticity and sponge density. Half a year later, the first "spinal - protecting chair" was born: the curved backrest fit the lumbar curve, the adjustable armrests were suitable for different shoulder widths, and even the chair wheels were made to be silent to avoid disturbing colleagues.

In 2010, casual got a crucial turning point. After a batch purchase by an Internet company, they gave feedback that employees still easily got tired from sitting for a long time. He immediately led a team to enter the enterprise and recorded the employees' office postures for a whole week. Eventually, the "dynamic support system" was developed - the seat surface could slightly shake with the sitting posture to relieve muscle tension. This upgrade skyrocketed casual's reputation and doubled the order volume.

Today, casual not only focuses on office chairs but also launches height - adjustable desks to meet the needs of standing work. From a small workshop to an enterprise with a 200 - person team, he always remembers the original intention: "Office work shouldn't be an ordeal. casual aims to be the 'workplace guardian' for everyone."