If you're looking for manga similar to Boku ga Otouto to Nakayoku Naru Houhou, you might like these titles.
Haruki's younger brother Natsuki dresses like a girl and always clings to him. This is starting to cause problems after Haruki gets into high school, so he tries to think of a way to work things out with Natsuki.
"If all the world's a stage, then are all the men and women really merely players? For Sakuya, it all started out as an innocent game: "Why don't you pretend to be a girl and approach my brother?" Yuuki said. ?That?s a great idea!? responded Sakuya who unbeknownst to him would begin to discover he and Yuuki's brother shared not only many things in common but mutual feelings for each other. Known as Sakura to Yuuki's brother, Sakuya finds himself caught between a rock and a hard place as his feelings for Yuuki's brother continue to increase. Will Sakuya have the courage to confess his real identity and feelings to Yuuki's brother and will Yuuki's brother be able to accept Sakuya for who he really is?
In the evening, a rather familiar girl standing in front of a general store's window? Just when he thought life isn't a shoujo manga, our dear main character got dragged into an adventure of his lifetime, at least it would seem so...
Students are at a hot spring for a school field trip and two friends, one who happens to be a trap happens to end up alone with his friend, all said and done, some ecchi things occur leading to a love comedy of sorts.
Wakaba, Natsuki and Sasaki from Hatsukoi Lovers,Onii-chan Complex, and Houkago, 2-C no Kyoushitsu de. come together and exchange presents shortly after Christmas and talk about who they love.
A boy is forced to dress as a girl to be a Mannequin for his sister/brothers fashion designs.
Kawai Ryouichi has been troubled with the question of if he is gay or not, he doesn't believe so and to prove it he tries to ask a girl out.
Sho-chan is a shoe shop owner with a fetish. One day ge gets discovered by a high school student he has a crush on.