does anyone know some good sad manhwas i can read?

conflicts that WILL make you cry:
http://www.mangago.me/read-manga/work_fight_and_love/?9zGb
http://www.mangago.me/read-manga/egoism_tim_alchem/?74Pi
http://www.mangago.me/read-manga/restless/
http://www.mangago.me/read-manga/how_much_i_like_you/
http://www.mangago.me/read-manga/a_thousand_cranes/
http://www.mangago.me/read-manga/raising_a_bat/?7ESm
http://www.mangago.me/read-manga/wolf_in_the_house/?OJyt (the second couple)
http://www.mangago.me/read-manga/geu_kkeute_issneun_geos/?giVz

the fucked up kind of sad:
http://www.mangago.me/read-manga/similar_terms/
http://www.mangago.me/read-manga/hogu_hagyeongsu/?tBPO (warning: this gave me PTSD)

oh, and this one too http://www.mangago.me/read-manga/interview_with_a_murderer/

- 10 years where I loved you the most
- Banana fish
- Deep love: Ayu no monogatari
- Hana no miyako de
- Reimei no arcane
- Haru no noroi
- Zanuff the butcher
- This witch of mine
- Shigatsu wa Kimi no Uso
- Watashitachi no Shiawase na Jikan
- Three days of happiness
- To You, the Immortal

Hope you will like some of them.