Eensy Weensy Monster (Japanese: eensy-weensy モンスター, Hepburn: Iinshi-Uinshi Monsutā) is a shōjo manga by Masami Tsuda, published in Hakusensha's LaLa and collected into two volumes.

[4] The story is about an average high school student, Nanoha Satsuki, who comfortably spends her time in the shadow of her two beautiful popular friends Renge Midou and Nobara Ryuzaki.

Her days are happy until Hazuki Tokiwa (the "prince") with his arrogant demeanor gets under her skin, releasing her inner monster!

Nanoha Satsuki Renge Midou Nobara Ryuzaki Hazuki Tokiwa [5] [6] Brigid Alverson describes the manga as "short, witty, and well drawn", and praised it for its subversion of shojo manga tropes.

[7] Leroy Douresseaux enjoyed hearing both Nanoha's and Hazuki's thoughts, feeling that watching the characters "get a clue when they are so clueless is delightful".