a heartwarming manhwa that can make your heart clench and has a good ending?

Commenting cause I wanna know aswell

Blood bank

http://www.mangago.me/read-manga/save_me/?KmY1
http://www.mangago.me/read-manga/haru_ga_kita_kome_tasu/
http://www.mangago.me/read-manga/given/
http://www.mangago.me/read-manga/kimi_ga_shinu_made_ato_100_nichi/

fluff
http://www.mangago.me/read-manga/suzutsuki_neko_wa_nyao_to_naku/
http://www.mangago.me/read-manga/fuyushirazu_no_koi/
http://www.mangago.me/read-manga/oh_my_assistant/
http://www.mangago.me/read-manga/yamada_to_shounen/
http://www.mangago.me/read-manga/katakoi_opera/
http://www.mangago.me/read-manga/shoushin_otoko_ni_haru_no_arashi/
http://www.mangago.me/read-manga/senpai_danjite_koidewa/
http://www.mangago.me/read-manga/salad_days_tang_liuzang/
http://www.mangago.me/read-manga/negative_kun_to_positive_kun/
o