Ibitsu no Kakera
A beautiful story, but so sad. That big brother is really twisted.
Rokugatsu no Hengen-san
A very interesting story line. I'm curious of what's going to happen between Natsu and Haru See sequel "Shichigatsu no Kousaten (Yaoi) manga" http://www.mangago.me/read-manga/shichigatsu_no_kousaten/
Renai Patisserie
It's tagged as a comedy, but i didn't find anything about this amusing. To me it was dark, and sad, and a bit twisted. Yes there were sweet moments to balance it out, but the main story was very sad.
Nigai Kajitsu
TOO FUCKING SAD!! I'll admit, the story was good,, the art is amazing, but the plot is so freaking heartbreaking.
Cold Rain Of Happiness