Akihabara: Electronics, Games, and Porn Paradise

Today, I made a short trip to Akihabara. Contrary to what I've heard about Akihabara, nicknamed "Electric City," I discovered today that there is another face to it. Besides the billions of gadgets, wires, and computers, maid cafes, anime/manga/video games, and toy collections, there is a thriving sex industry hidden beneath all of this.
Just the other day, I came to Akihabara with a couple of friends, looking for a mobile phone. I saw a lot of anime posters posted all over the buildings, and I remember going to a couple of shops, all of which had a bunch of electronics (wires, outlets, adapter, etc.), and a "hobby" store, selling parts for building models, etc. Today, though, I walked around the opposite side of the city and saw a land of porn. Throughout the street, there were girls dressed in maid uniforms, handing out flyers and advertising for their shop (mainly maid cafes). There were many manga/anime stores that, at first glance, seemed pretty normal. My friend and I entered one store just out of curiosity, thinking we would see the popular anime/manga these days. However, the first thing I noticed when I entered was that all the customers were male. The second thing were the giant posters of hentai anime hung throughout the store. When I came in with my camera in hand, all heads turned to look at me. Almost immediately after, all turned back around in embarrassment and hid whatever it was they were looking at. At that point, I decided it was time for me to leave since one, I felt out of place, and two, I was making everyone there uncomfortable.
As we continued walking around the city, we came across this building called "m's." It is basically a seven story sex shop selling everything from lingerie to costumes to adult goods.

When we headed back to the train station, we saw the AKB48 cafe and Gundam Cafe. There was a hugggggee line and lotteries were being drawn. I don't really know what was going on, but everyone whose number was called received a stamp on the back of their hand, and then were permitted to go to the small service window where (I guess) things were sold. We were short on time, so I couldn't stay to investigate, but I will make a second trip back and update in the future.