If you're looking for manga similar to Secret of My Uniform, you might like these titles.
Includes the following chapters:
"Disgusting, not even cute." I hurt my little brother, a popular cross-dressing model, with heartless words. But none of them are true. Our parents remarried when we were little, and Yuki became my step brother. He's so cute and very, dearly important to me, but somehow my feelings changed into something they shouldn’t have. It's painful to be around him, but Yuki, who's grown up to be so handsome, keeps coming to me even when I give him the cold shoulder…
After being teased by his classmates for his inexperience, Minami decides to go and rent a dirty video. But, when he gets to the video store, he stands around, not quite able to muster up the courage. That's when he happens to run into Chinatsu, an old childhood "friend," or rather, bully! When Chinatsu wants something, Minami just can't say no to him! What kind of horrible favor is he going to ask for next...?
When sweet, determined Miharu goes undercover as a girl in order to track down a bunch of groping pervs, he catches the eye of his shocked classmate Keigo, too! But the biggest surprise of all? The two guys have the kind of chemistry that exists only in dreams. Will they suffer through the awkwardness and become the perfect team?
Tanahashi, a completely ordinary high-schooler, has a secret hobby: He dresses up in girls' clothing, and uploads pictures of himself to the internet as the net superstar Hikaru. Tanahashi just uses his secret activities to let off steam, but what will happen when he finds out Kino, his popular classmate, is Hikaru's biggest fan!? There are also several other stories on a varity of themes, from love-triangles to punishingly sadistic sex, in this manga by Kimiko Kobori!
Popular with maniacs, crossdressing Idol “Rukiya”, Usui Tokito is usually a plain high school student. It's just because he likes cute things, it doesn't mean he wants to be a girl or he likes men. That's what he was thinking... then one day, Tokito's secret is found out by the nurse doctor, Katsuragi Ken, who's a passionate fan of Rukiya. In the course of events, they end up having sex...
Life is peaceful for Keiichi at his all-boys school. But one day, his classmate and best friend, Minami Sonoda, asks him out. Confused by these sudden gay advances, Keiichi rejects him and makes a run for it... But, that's not where it ends. The next day, Minami appears in front of Keiichi again, dressed completely as a girl, and brazenly vows never to give up on Keiichi's heart...!! Will things at school ever be the same again...?
Amamiya You, who studies in an all boys high school, is still a virgin that has never been in love. One day, rumour spreads that he is someone who goes to bed easily when asked. At first, he wanted to clear up the misunderstanding, but then he decided to take advantage of the rumour to test if the person he likes would want to get in bed with him. When Chiaki finally notices him, he realizes that only being in a physical relationship is lonely.
After his father's bank failed and his parents became ill, Shimura Mikoto is the only one who can save his family. But he's not suited to any job no matter how hard he tries. Then he's picked up by the heir of the rival bank, Kimishiro Marehiko. Mikoto swears he'll do anything, but a maid outfit?