Yaoi with angst or with tragedy, but a happy ending?

actually it doesn't even have to be a yaoi, just need some sad->happy.

Here you go:

http://www.mangago.zone/read-manga/senya_ichiya_shitone_no_himegoto/

Sad > Happy
http://www.mangago.zone/read-manga/itou_san_kuraka_sui/
http://www.mangago.zone/read-manga/double_hound/

Angst so many of this list
http://www.mangago.zone/home/mangalist/101017/

http://www.mangago.zone/read-manga/sabita_yoru_demo_koi_wa_sasayaku/