Located a 10-minute walk from hostel DEN. Iwamotocho Station is a subway station on the Toei Shinjuku Line. You can easily go to the Shinjuku Station (15 minutes) from here.
*Reason for recommendation
There are 4 stations around hostel DEN (Kodenmacho Station, JR Kanda Station, Iwamotocho Station and Shin-Nihombashi Station), so you can choose which station is best for you depending on where you want to go.