Ikebukuro Station--East Exit
You will walk up the main street called Sunshine City Street, or Sunshine City Doori, for 4-5 blocks to the first stop, Sunshine City Complex. Then you will retrace your steps for the rest of the tour.
You'll know when you've arrived at Sunshine City by the sheer size of the building. This is the best first stop on this route because it not only packs a punch in terms of shopping options, but it's a jolt for all of your senses. The tour will then wind down (a bit) from here as you head back west toward the station through some of the neighborhood's must-see spots.