  ALMA is a revolutionary radio telescope at present and its full operation
will start from 2012. It is expected that ALMA will resolve several cosmic
questions and will show a new cosmic view to us. Our passion for astronomy
naturally goes beyond ALMA because we believe that the 21st-century Astronomy
should pursue the new scientific frontier. In this conference, we propose a
project of the future radio telescope to search for Habitable planets and
finally detect 2nd Earth as a Migratable planet. The detection of 2nd Earth is
one of ultimate dreams for not only astronomers but also people.
