It’s a new school year and Ryuuji Takasu discovers not only is he in the same class as his best friend, Yusaku Kitamura, but also Minori Kukshieda whom he's had an undisclosed crush on for quite some time. Along with Kitamura and Minori is Minori's best friend, the “Palmtop Tiger”, tiny Taiga Aisaka whom, despite her small stature, takes nothing from nobody. (When unflattering pictures of her in a bathing suit were circulated, “Of course, I made it rain blood in the photography club.”) Taiga is secretly in love with Kitamura and she and Ryuuji, despite an oil and water relationship, agree to mutually support each other in their quests for their heart’s desire.