Shin Yi-seok, a rural transfer student who carries ominous rumors due to his rough appearance, witnesses a sly secret kept by Jo Hae-ju, the top student in the school whom he fell for at first sight... His questions about her only continue to snowball. The one-sided crush bombardment of the 'true tomato' Shin Yi-seok begins on Jo Hae-ju, who is like an apple—red and shiny on the outside, but white on the inside!