Mangas

First Love Lovers
Mamori Kusunoki's childhood friend Wakaba Kisaki has been dressing and acting as a girl for years, stemming from a promise to get married when they were kids.
Exchanging Presents Has a Dangerous Scent...!?
combines the three yandere traps from the author's three previous one-shots Hatsukoi Lovers, Onii-chan Complex, and Houkago, 2-C no Kyoushitsu de.