aaack

http://www.mangago.zone/read-manga/the_paper_plane_which_is_under_the_rainbow/
Also after reading it, if you don't understand it, read the comments below.

thanks!

http://www.mangago.zone/read-manga/spring_snow_odongtong/
http://www.mangago.zone/read-manga/not_for_the_faint_of_heart/
http://www.mangago.zone/read-manga/banana_fish/
http://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/
http://www.mangago.zone/read-manga/hebi_no_seikatsu/ - the execution for this one is very confusing but if you understand it then it is a geniunly great storyline, i had to reread it a few times but each time made it more tragic :")

TEARJERKER
list is a collection of
• happy ending
• bittersweet
• sad/tragic
http://www.mangago.zone/home/mangalist/636848/

i recommend this for quick read
#006 http://www.mangago.zone/read-manga/paradise_view/
#019 http://www.mangago.zone/read-manga/hypnosis_mic_hoshi_ni_naru_made_doujinshi/

mangas #001-009 have happy endings. the rest are bittersweet or tragic

Follow the list to be updated. And if you liked the mangas/manhwas I included, please do recommend. Enjoy~ (人 •ᴗ•)