Need help as I'm a bit confused.. I'm checking what train line to get going to Akihabara from Shibuya through Hyperdia. I got some results like take the Yamanote line and it shows Shibuya - Osaki - Akihabara. Why is there Osaki in the middle while Yamanote line is just a loop, do I need to transfer when I get to Osaki? There are also options like Shibuya - Yoyogi - Akihabara, why is Yamanote not the default result since it seems the easiest way with no transfer?