Also known as: チョコケーキ6姉妹
A set of original characters by Akakura consisting of 6 sisters each based on a flavour of chocolate cake: Kamiusagi Rena/raspberry, Konogata Yui/matcha, Takarai Tsurugi/lemon, Akasaki Ryoko/orange and Sakurajima Marika & Saki/strawberry & sakura.