Modular sofa

Hardware: Independent exposed U-shaped matte carbon black box steel frame on both sides, with soft modules placed directly inside the steel frame; The armrest cushion is independent, and the tail strap is fixed to the steel frame. The cushion can be removed.
Software: 3 independent tofu block sitting modules, with intentionally enlarged leather covers and vertical natural sagging folds on the sides, not a tight fit.
Backpack: The entire large backrest cushion+2 scattered down pillows, all movable.
Bottom: No traditional sofa legs, all load-bearing is supported by square steel frames on both sides, with a hollow bottom for robotic vacuum cleaners to pass through.