Where can I watch the Shuuen no Shiori (Bookmark of Demise) music videos? Preferably with English Subs. The YouTube videos either don't have the audio due to copyright or don't have English Subs.  I bumped into the project randomly and wanted to listen to the songs and watch the videos but only YouTube video show up on Google.
I'm not sure where you'll find a version with English subs (there aren't any "official" subs, at minimum), but you can find the ones that have music videos on 150P's Niconico account. 


Kodoku no Kakurenbo (alternate)
Nisemono Chuuihou (alternate)
Kanzen Hanzai Love Letter (alternate)
Saru Mane Isutori Game (alternate)
Arikitari Heroes (alternate)
Makeinu Shijou Shugi (alternate)
Shuuen no Shiori (alternate)


If you don't have an account on Niconico and don't want to make one, use the alternate links instead. No guarantees that those links won't crap out at some point, though.