Miu Shiramine (白峰ミウ), a popular performer in the "mature" (jukujo) category. Release Date: February 1, 2021.
The format suggests it could be a product or chemical identifier. If it relates to a chemical or product, further investigation within proprietary databases or direct contact with the entity that issued the identifier might yield results. PRED-693 Miu Shiramine02-01-59 Min