Yaoi or shounen ai where the seme is housekeeper? Maid? Slave?

http://www.mangago.me/read-manga/spinel_baekji/

http://www.mangago.me/read-manga/secret_note/
http://www.mangago.me/read-manga/kami_kon_ni_ai/
http://www.mangago.me/read-manga/munetaka_sama_no_dame_maid/
http://www.mangago.me/read-manga/hydrangea_cage/

http://www.mangago.me/read-manga/shh_you_ll_wake_up_the_child/