Apartment "REI FLAT" from "Shinjuku new south exit"
It is on the right side when you move toward the station.
Go straight
Go straight
Take the down escalator
Take the down escalator
Turn Right
Go straight and turn left
Go through the pedestrian crossing
Go through the pedestrian crossing, and turn left
Go straight
Go straight
Its here!
After 8 pm. you have to use the key.
Room key is in the key-box on the room door knob.