The term 'NK flow' was born from the destruction of Nishigawara. It seemed like the underground sex industry had been destroyed as well! However, in 2016, a report emerged on a certain large bulletin board that an area had revived despite red-light district regulations!!! And it's none other than Setagaya Ward. Rumors say that wealthy wives with too much time on their hands are gathering and secretly turning their basement into a place for full-service salons!!! Even the authorities are shocked!!! Who would have thought that a full-service salon was operating in secret in a corner of this high-end residential area?!
