Cafe Son is a cafe in Samgakji, Yongsan, Seoul, serving hand-drip coffee and pudding. It occupies a five-story building that appears to have been converted from a private home, with window seats that look out over the Samgakji city view and quiet seating areas. At the entrance, you press the doorbell and wait at the door for the owner to let you in, and the interior is divided into three spaces. There is no elevator, so you have to walk up to the fifth floor.