Oshi ga Imouto ni Narimashite

Also known as: 推しが妹になりまして。, My Favorite Idol Became My Little Sister

by Rou Kawai

Kazuka Kojima is a pretty and popular high school girl secretly obsessed with the idol "Kane-chan". When her parent remarried, she found out her new step-sister Akane is the "everyone's sister" - the "Kane-chan" of her dreams!　Hyper yuri love comedy begins! (Source: Comic Boost, translated)