Books in the Crossplay Love: Otaku X Punk series

The punk, Shuumei, and the otaku, Yuuma, fell for each other while crossdressed as cool beauty Mei and bubbly maid Hana, respectively. Things continue to spiral as Yuuma and his bestie Shimazaki try to help cure their normie friend Nakamura, who's afraid of girls... because they keep falling in love with him! Though the otaku aren't exactly sympathetic, Shimazaki offers to help him... by accidentally taking him to Roman, the cafe where Yuuma works as Hana! Will his bestie figure him out? What if Nakamura falls in love? Most importantly... where's Mei?!