When we generalize the business of topic companies, Uber and Airbnb, it can be said the platform services business that enables the peer to peer type direct interaction between professional service providers and users. And a feature of this embodiment is that the assets are left to the professional service providers, platform service providers specialize to support the dealings between professional service providers and the user. For this reason, it enables service start-up in the small assets and small number of people. On the other hand, conventional professional service providers that was only as the employee at companies, has the means to make a independently living as a personal manager. This is considered as a new co-creation between people and IT. So, explore this direction.