Toradora! Volume 3 (Manga) — Yuyuko Takemiya

Let the face-off begin! Popular teen model Kawashima Ami has just transferred into the same class as Ryuuji and Taiga, and things couldn't get off to worse start. Ryuuji and Taiga know Ami's secret�" that the angelic persona she presents to the world is a lie, and she's really a selfish, bossy brat. Taiga becomes the first target of Ami's viciousness, and the “Palmtop Tiger” is not amused!

So begins a war of epic proportions between two ferocious girls, and the ill-fated Ryuuji stuck in the middle!!