yaoi manga with slow development of the main couple? thanks.

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

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

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

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

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

http://www.mangago.zone/home/mangalist/65526/