The Anime Soft announced release of Linux Managaka Koe Final, a Kubuntu 14.04.x based GNU/Linux distribution featuring Vanila KDE.
From Release Announcement:
After the success releasing NYU with a lot of passion, we decided to start creating KOE witch reached the final stage yesterday!KOE is based on Kubuntu 14.04 with vanilla KDE 4.13.3 core libs containing manga drawing, viewing, anime playback and as well subtitle programs out-of-the-box. We beg for your patience at booting, the system has not a boot-logo (to look more intuitive with the KDE desktop) but positively it ship some customization to fit the way as a complete beautiful Operating System made just for you!