Keyakizaka46 group's official website informed that Oda Nana will be absent from the concert activities at Tokyo Dome which will be held for 2 days, 18 ~ 19 September 2019.
The Keyakizaka46 Concert at the Tokyo Dome is the final series of the 'Natsu no Zenkoku Arena Tour 2019' and is the first Keyakizaka46 concert at the Tokyo Dome.
Fans linked this issue with Oda Nana's latest dating scandal.