From "Subway Sakaisuji Line Nipponbashi Sta."
【1】Exit 'Middle-South ticket gate' and go straight towards 'Namba Walk'.
【2】Continue walking on 'Namba Walk' until you'll get to the exit 'B21'.
【3】There's an escalator on your left before ' Currency Exchange Bureau'.
【4】Take the escalator.
【5】Get off the escalator and enter to ' 千日前( Sennichimae arcade)' on your right.
【6】The entrance of Namba Oriental Hotel is next to 'LAWSON'. Enter through the revolving door.
【7】After entering through the revolving door, take the elevator on your left. The front desk is on the 3rd floor.