I get a sense of discomfort every time I get back to Japan from a trip abroad. I feel it from the silent and cold impersonal impression of the abnormally clean streets that seem to cover up something lying underneath. Buildings of pre-existence and new, renovation and development that were constructed by different architects in different times coexists in undisciplined way in this country. When I get amused and even find wonder in the chaos of what seems like a disorderly scene on the surface, I feel the immense existence of invisible force, rather than an insecurity or an uncertainty.