[Dani_Speed]

Here's my r/NBE thread on her (has some info on her growth & a blog which claimed to know her program, hard to say for sure on that part though):

Japanese Model Who Says She Grew F Cups from NBE : r/nbe (reddit.com)

And here's a link to an old article mentioning her reduction: 

 

Busty celeb [b]Aki Hoshino[/b], 33, admitted recently that she has “downsized.” Appearing at an event to promote new-style sushi rolls from the Aeon department store chain, Hoshino revealed that she had recently undergone breast reduction surgery. The former swimsuit model, who decreased her bust from a Japanese F cup to an E, said she will try her best to stay in the entertainment industry until she’s 40. Thanks for the mammaries.

Source: Metropolis Japan

BTW, does anyone have information on another Japanese NBE practitioner named Mayusaki / Mayusakimilk / Miyosakimilk? I've never come across any pictures or evidence of her NBE journey, but I've seen references to her on multiple sites and claims she had results similar to Chyomilk.