Sorry, Shunsuke. Your 1:1 Yumika figurine is going to have to be for your own personal lingerie crafting use and not for national distribution. Do clad it in the finest silks and synthetics in order to give quality undies to the lady you love.
Laser cutters are getting a bit less expensive these days. They're certainly not cheap, but they are in the realm where it's possible for individuals to own them, especially if you only need 2d cutting.
For something like a sculpted model, resin printing would be the best, least expensive option, followed by computer-controlled machining. CNC machines are likewise not cheap, are coming down into the 'about like buying a car' range. There are people who've built their own using off-the-shelf components.