When there is an opportunity to design our own exclusive working space, our role is to switch between Party A and Party B, and we put forward a clear request to ourselves: on the basis of providing a comfortable office environment for the architects, with a cool, approachable, circulating and open work space to accommodate the changing demands of the future. "line" is the boundary, and "+" aims to break through the boundaries, and the renovation design adheres to the core concept of the firm, breaking the boundaries of space and time, which also coincides with our own attitude towards contemporary new office spaces.