27-sai no Nyuugan Diary: Boku no Miki-chan ga Nyuugan ni Natta Hanashi

A biographical manga surrounding former SKE48 idol Miki Yakata, who is diagnosed with breast cancer and quits touring with her group as a result. Her left breast becomes removed due to the cancer resurfacing, but that won't stop her from achieving her dreams of being in the spotlight!