The easiest way to reach Miyabi's apartment is by stopping at Shinjuku-sanchome station, take exit C7. Once you've reached ground level, continue walking straight until you see the traffice light. Cross the road and turn right. Walk straight until you see Lawsons. There is a small alley next to Lawsons. Thats exactly where the apartment is.
Miyabi is a fantastic host whom is hospitable and reply to messages fast. Thanks Miyabi for allowing us to store our luggages at your place a little longer than the expected check-out time!