These presentation slides are what will be presented at Pycon Korea 2018. They explain what microservices architecture is and Why company 'mymusictaste' moved from monolithic application to microservices architecture. The slides also explains how we built microservices with Python and utilized AsyncIo and Sanic. We built our own framework to add features on Sanic to meet our needs. This is to share our experiences transforming to micro services architecture as a startup company with everyone at Pycon Korea 2018.