"Is this how you’re meant to do it?" "Don’t just try to use force, shake it gently and thoroughly." "Wow, it really got bigger when I shook it!" "Do I have to keep rubbing it like this for the liquid to come out?" "Oh! It came out!!" "Hey! Aim properly! It’s getting everywhere!" "Oh, sorry..." Kim Nam-joo and I, Park Yeo-joo, are business partners operating an advertising agency together, and we have been close friends for a long time. In order to rescue our struggling company, we will personally test adult products and write reviews.