This shop is on the first floor of a building "AKIBA 神TOWER", and it has other floors where you can get massage, and see amateur idols sing in front of you. You can see how to go from Akihabara station to this shop by seeing the video below. Also, here's a link to the website of this tower.
Normally Akihabara is very crowded like the pics I showed you before, so I guess this video was shot in the early morning.