I had been spending gloomy days after college graduation because of the gap between ideal and reality.

 One day I had been stopped by a guitar which hanged on the wall of the instrument shop. It said "I know your gloom". --- I do not know why, but I bought it.

And I do not why, but I had kept touching it.

Later I added knowledge of cognitive science and modernism to the hanged guitar for tackling the gloom.

I hope my product would erase someone's gloom.