Bokurano
It is a tearjerker from start to end... Though at the end there wasn't any more tears to pour... with a nice heartwarming extra chapter afterwards.
Afterschool War Activities
The end was sooo shocking, although we did see it coming and still shocking. Everything else, good plot, average characters and a very good narration that swallow you into the story. Highly recomended, but just skipping the ending xD *Still shocked*
Shino-chan wa Jibun no Namae ga Ienai
To be a manga from Oshimi sensei, all of their characters turned out to be surprisingly adorable *-* And the theme of the title is pretty touching. My heart broke in thousand of pieces in the end when her child helps her Q_Q Thank you very much.
Elfen Lied
After School Nightmare
I liked it, the plot is awesome, the characters somehow interestings and a twisted end.
Ibitsu