Shojou with crossdressing

Not a manhwa but a manhua, it's okay I guess National School Prince is a girl and another one which is much better is The Naive Mr Lu

I do now this BL called men's wear store and her royal highness where the ML cross dresses

Historical:
http://www.mangago.me/read-manga/yeon_lok_heun/
http://www.mangago.me/read-manga/emperor_and_the_female_knight/
http://www.mangago.me/read-manga/chouka_kou/
http://www.mangago.me/read-manga/koukyuu_days_shichi_kuni_monogatari/

Enjoy ヾ(❀╹◡╹)ﾉ~

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

gender benders (historical):

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

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

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

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

(ml disguised as woman) http://www.mangago.me/read-manga/the_lady_i_served_became_a_young_master/

(not historical) http://www.mangago.me/read-manga/from_today_on_i_m_a_boy/

I FORGOT TO ADD THIS http://www.mangago.me/read-manga/queen_cecia_s_shorts/
it’s rlly good as well