Chaekura Fanfic ( Complete ) Second Book Of 'The Cousin Of My Sister's Crush' Miyawaki Sakura became the CEO of M.J. Company and became popular, yet she still have feelings for Chaeyeon and keep on stalking her. Lee Chaeyeon debut as an idol with Yena, Chaewon, Hyewon and Eunbi. She recently found out her feelings for Sakura and start to be her fan but secretly and no one knows.