It's "she", isn't it? I thought that "HERO" is a pseudonym of a woman?
You know... I wouldn't be surprised. I keep finding out many of the anime/manga that I've particularly enjoyed in recent years are actually originally written by women, and I realize just how much more believable they feel to me. They just seem to 'get' emotions better, in general, I guess?
Like Saeki-san (Angel Next Door), Sakurai Norio (BokuYaba), Umino Chica (March Comes in Like a Lion, though I feel like I should look into Honey and Clover at some point), Fujichika Koume (SukiMega and Tonari no Onee-san ga Suki)... And Fukuda Shinichi (Sono Bisque)... (at least, fairly sure at this point they're all women?)