Responses
It's probably this mangaka http://www.mangago.me/r/l_search/?page=1&name=KITAZAWA+Kyou . This link shows all her work on mangago and if its not the one of these manga then it probably not translated yet.
It is indeed Corsair, the artist is Minami Fuuko.
http://www.mangago.me/read-manga/corsair/
It has such pretty art!
http://www.mangago.me/read-manga/saezuru_tori_wa_habatakanai/mf/c001.1/pg-1/