+d is a brand of interior decorating items collaboratively designed by h concept ([a∫kαnsept] pronounced "ash concept") and interior designers.

What did the designers think and feel during this process, and why did they make what they did? They carefully nurtured their concepts, from the first seed of an idea until its final blossoming, making sure that the feelings of the product's designer would be passed on to anyone who encounters it.

It is precisely because we are surrounded by "things" in our modern lives that understanding and enjoying the stories behind these products is so important. +d: delivering products with heart for a new age.