http://www.mangago.zone/read-manga/kawaii_hito_pure/ (sister's husband)
http://www.mangago.zone/read-manga/ani_no_senaka/ (sister's husband)
http://www.mangago.zone/read-manga/follow/tr/123637/page/12/ (sister's husband. But seme, not uke)
http://www.mangago.zone/read-manga/like_as_the_time_will_come_when_it_will_rain/tr/56966/page/138/ (sister's bf)
http://www.mangago.zone/read-manga/love_skit/ (sister's husband)
http://www.mangago.zone/read-manga/i_want_to_become_your_bird/ (not husband but bf)
http://www.mangago.zone/read-manga/suki_ni_naccha_ikenai_hito/mf/v01/c001/4/ (not husband but fiance)
Ani no senaka
j
Yaoi manga where the uke falls in love with his sisters husband or something...or like his guardian and its somwhat heartbreaking and touching and gentle... Please? Thank you :)