Second Half Girls

The manga centers on Nene Oyamada, a 40-year-old single woman, happy in her life supporting her favorite idol RENJI, with her same-age otaku friends. But news about RENJI's eight-timing affair has come out and caused an online uproar. RENJI has disappeared and has essentially retired from the entertainment industry. Nene and her friends suddenly lose their purpose in life and do not know what to do anymore. But in this era in which people live almost until 100 years, they try to restart and explore other things in life.

(Source: Anime News Network)