New trailer for M – Ai subeki hito ga ite ! #ayumihamasaki #浜崎あゆみ
— AyuAngel (@ayuangel_news) March 15, 2020
#ayuday@ayu_19980408#M愛すべき人がいて https://t.co/l5WRIrmk1h
From what I could find, it's based on the biographical novel "M Ai subeki Hito ga Ite," written by Komatsu Narumi. It's set in the 90s and covers Ayumi Hamasaki's rise to fame.
Anzai Kalen will play Ayumi Hamasaki and Miura Shohei will play Masato Matsuura. It will begin airing in April.