After school, a Korean women's group started its activities in the style of graduation and admission system. Liu Bing, Liu Bing, Nana and Lizzy, the three youngest players, formed a team named Orange Caramel and started the first team activity. Different from the sexy style of After School, Orange Caramel focuses on the lovely route, which embodies the other side of After School. They have won the love of many otaku and otaku women with their unique catchy music style and extremely lovely dances and costumes, which are similar to girls' trotting.