Joy, Irene, Seugli and Wendy are four half-sisters who share the same father but different mother, the girls were awkward with one another at first but got close to each other after another kid bully Irene their oldest sister. Ever since then the four girls has been each other best friend, their first and second year of high school was normal until they had to transfer to a different school across the city. Going to a new school and kno