Design Boom introduces us to Mamonaku Kohi, a Japanese-styled cafe in Quezon City, the Philippines. It's not a place where you can park yourself for a couple of hours, sip your drink, and enjoy free WiFi in an air conditioned environment. The service point is literally a roughly-cut hole in the concrete wall.
The exterior is spare, but professionally designed and constructed. There's a menu on laminated cards next to the hole.
It's ideal for extreme introverts. You don't even have to talk to the staff. Tap your order on a tablet on the outside and a hand will soon emerge with your drink.