The menu is very simple, it is written on a narrow blackboard.
We had a glass of Cold Brew Tea (left, light brown) and a glass of Cold Brew Coffee (right, dark brown). The cold brew tea is composed of tea from nitrogen machine, ice cubes, fresh lime, and simple syrup. The cold brew coffee is shaken with ice cubes and simple syrup.
While making our orders, the owner / barista told us story of how he started this business and the variants of drinks available. Everything is handmade in his shop, including the bar table, ceiling, and so on. The takeaway paper cup is hand-stamped with OCD logo. The owner said that it is his family project, in which all members of his family are involved in the process. So sweet. He inspired me to have my own couple / family project in the future.