Hiromi Tanaka is a supporting character in Hamster & Gretel. She is a student at the high school Kevin and Fred attend to. Kevin has a crush on her and attempts to look cool in front of her without embarrassing himself. Even though it was unclear throughout most of the first season if she felt the same way about Kevin, she eventually accepted to go on a date with him. It's revealed in "Exclamation Strikes Back" that she did like Kevin, however, since she was stood up again due to circumstances out of Kevin's control and unbeknownst to her, she decides to break it off with him; it's currently unknown if her relationship with Kevin will be restored in the second season.
She also has a side job at Comics! Etc, the comic bookstore that Kevin frequents in the Dream Mall.