 If you liked
Kagerou Daze
|
 ...then you might like
Shuuen no Shiori
|
the are both manga adapted vocaloid projects, they have obscure but really interesting plots, though "Suuen..." is more horror, they have many interlinking elements that make for great plotlines.
I'm not sure actually. It's gives the same vibe, and in general the art looks similar. They both have this "mystery" attached to them.