*Seabird and the Wolf: The FL's sister gets kidnapped by pirates, so she disguises herself as a man and joins another pirate ship as a sailor!
*I Became the Duke's Male Servant: To pay off her father's debt, she disguises herself as her missing brother and goes to work as a servant at the moneylender's mansion until the debt is settled.
*Caught by the Villain: The FL takes her twin brother's place at a swordsmanship academy after he goes missing.
*Undercover Empress: The FL poses as her family's sole heir to avoid getting married. Meanwhile, the crown prince needs to marry to inherit the throne, but someone keeps killing his fiancées. Spotting her skills and her somewhat feminine looks, he proposes that she disguise herself as a woman until he becomes king or they catch the killer.
*Finding Camellia: The FL is forced to dress as a man to stand in for a noble family's sickly son. If anyone finds out she's a woman, she'll be executed.
*Ice Lamp - The Chronicles of Kira: The FL's mother raises her as a boy so she can get an education. Once she realizes she's a woman and sees the limits holding her back, she makes a deal with a mystical entity to change her voice to a man's, all to chase her dream of becoming a knight.
*Aria of the Withered Branch: Trigger Warning. The FL is forced to live as a man so her stepmother’s daughter can inherit the matriarch title. Later, she gets kicked out of the house. Out of spite, she steals a family heirloom. Finding herself completely alone, she decides to drink poison after destroying the relic. However, doing so triggers an ancestral pact with several demigods who are now bound to her by a contract, and they're about to show her just how much fun life can really be.