I don't know, not necessarily tragic, but a bit depressing. But still hopeful.

I'm looking for something like:
Boku no Kan de Bansan o
Kanojo no Namida ga Yuki da Toshitara
Ningyo ga Fuchi
Akuma ni Itsukushimi no Te o
See You Again (IKE Junko)
Inoribana
Summer Blue (AWAFUJI Shiki)

Yeah. I think all of these are oneshots, but really, anything goes.
Much thanks in advance.

Mabye try paradise kiss? Its got an unexpected bittersweet ending and really unique characters

Bitter Virgin - pretty much exactly what you're looking for (I'd imagine)

-Model by LEE So-Young.. made me depressed
-First Girl ...SAITOU Chiho .. mature and depressing .. worth the read though
-Aku no Meshitsukai by mothy .. search the manga.. lol .. cause there is a song version.. made me bawled
-Sword art online..... is a bit depressing too (the first part only though -_-)
-DATTE, KIMI GA WARAU KARA .... (;_
-Koizora .... (;_
-Boku no Hatsukoi o Kimi ni Sasagu didnt really like it.. but was a tear jerker
-Hana to Akuma The ending.. is unbearable
-Kigi no Yukue .... (;_

Oneshots:

Hotarubi no Mori E
Mugen Dokei
Hoshi ni Naru Hi
The Oneshot „hole“ in 100% Gokuama Kareshi!
(1999 nen chikyuu saigo no koi in Honki de Nakechau Koi)
Gekkou Chou
Kon no Ki Konoha
Slop Mansion ni Okaeri
Kara no Shounen
Nageku Shinigami
World End Garden
Babel no Tegami
Yume Kurai
Itsuka no Tsuki de Aimashou in Tsuki no Waltz

series:

Global Garden



Last edited by Niana at 11:57 am, Feb 19 2013

Empty Boy
Peter Panda
Hana to Akuma
Ludwig Kakumei
9 Faces of Love
Kon no Ki Konoha
Rec - Kimi ga Naita Hi
Orange (TAKANO Ichigo)
Boku no Hatsukoi o Kimi ni Sasagu

Some nonshoujos that fit...
Our Happy Hours
Tamashii no Futago
Hoshi no Koe
Kimi ni Shika Kikoenai

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49 is the first thing I have in mind. May add more later

________________
Help! I'm looking for... manga with dangerous guys http://www.mangaupdates.com/showtopic.php?tid=39874&pa ge=1#post594033

Some more one-shots:
100 Days Dream
Flowers
Shinobigoto
I like the first story in Yumenara Samenaide
Tada, Kimi o Aishiteru
Motto, Ikitai...
Undercurrent