can someone recommend me a shounen ai/yaoi with a very touching/sad story?

stigma, it has a happy ending though.

december rain

http://www.mangago.zone/read-manga/spring_snow_odongtong/
http://www.mangago.zone/read-manga/life_senjou_no_bokura/
http://www.mangago.zone/read-manga/lonely_to_organdy/
http://www.mangago.zone/read-manga/smells_like_green_spirit/

http://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/
http://www.mangago.zone/read-manga/lonely_to_organdy/
http://www.mangago.zone/read-manga/koinegau_horizonte/
http://www.mangago.zone/read-manga/paradise_view/
http://www.mangago.zone/read-manga/life_senjou_no_bokura/
http://www.mangago.zone/read-manga/incidentally_living_together/?frtV
http://www.mangago.zone/read-manga/1866/
http://www.mangago.zone/read-manga/i_will_be_waiting_for_you_in_1999/
http://www.mangago.zone/read-manga/kashikomarimashita_destiny/
http://www.mangago.zone/read-manga/like_as_the_time_will_come_when_it_will_rain/
http://www.mangago.zone/read-manga/blue_lust/
http://www.mangago.zone/read-manga/asa_to_mitya/
http://www.mangago.zone/read-manga/smells_like_green_spirit/

banana fish
tw: everything about the book is a trigger warning.