purplepineapple's manga / #Adventure(175)

Mc is a talented swordswoman. When her father dies, she finds out that he registered having two kids, a boy and a girl, who were twins. She had no siblings tho, and realized it was a male identity for her so she could keep using a sword. So she binded her chest, pretended she was a her twin brother, and told people that her sister had eloped with a man. She hides her true strength and barely makes it as a soldier. She becomes a soldier, meets a guy who comes every year to ask her to duel, because he knows she is stronger than she looks. She always refuses and is known for being a very lazy soldier captain. She meets the crown prince (redhead dude with sass) who asks her to marry him. (She is still dressed as a guy.) He says he needs someone who is good at swordsmanship to pretend to be his wife for five years. She will will have to crossdressing as a woman. She takes him up on his offer. She becomes his fiance and tells people that her twin sister got married and so she is leaving. (Remember there is no sibling. It's all her.) She is a woman crossdressing as a man crossdressing as a woman.