an Entity references as follows:
"Don't Look Back!" is the 11th single by Japanese idol girl group NMB48. It was released on March 31, 2015. This single and SKE48's Coquettish Jūtai Chū were released on the same day, and SKE48 placed 1st in Oricon's Daily Charts on its first day with 573,074 copies sold. NMB48 thus placed 2nd with 381,650 copies sold.