uke lost / abandoned by his parent, seme look after him.
http://www.mangago.zone/read-manga/stalemate/
http://www.mangago.zone/read-manga/yorokobi_wa_ude_no_naka/
http://www.mangago.zone/read-manga/yatamomo/
http://www.mangago.zone/read-manga/katsubou_no_manazashi/
http://www.mangago.zone/read-manga/royal_fiance/
http://www.mangago.zone/read-manga/after_morning_love/
http://www.mangago.zone/read-manga/super_lovers/
seme lost / abandoned by his parent, uke look after him.
http://www.mangago.zone/read-manga/chou_yo_hana_yo_watanabe_asia/
http://www.mangago.zone/read-manga/ai_no_kotoba_wo_uragaeshi/
http://www.mangago.zone/read-manga/our_previous_existence_this_world_you_and_me/
http://www.mangago.zone/read-manga/oni_ni_hatsujou/
http://www.mangago.zone/read-manga/end_game/
give me some yaoi where uke lost his parents and seme will look after him.