From the South Exit of Musashi-Koganei Station, go straight towards the “Nonowa” building which has restaurants and grocery stores. Go down the street on the left side of it.
Go straight down the street and pass by the Family Mart (convenience store).
Turn left at the corner of the intersection where you will see Seven Eleven (convenience store).
Go straight and you will find WCB (a white 7-story building). Enjoy your stay!