「愛こそ全て、Guilty Kiss」
Guilty Kiss is a sub-unit of Uranohoshi Girls' High School's idol group, Aquors. Guilty Kiss has three members: first-year Yoshiko Tsushima, second-year Riko Sakurauchi, and and third-year Mari Ohara.
They are the "cool" unit, with many of their songs falling under the rock genre, and are the most popular sub-unit of Aquors.