Love Dolls v0.1 PR by Smugger Win/Mac - Adult Sex Game

This game has very extreme content, it's a dark themed visual novel with a bunch of kinks & fetishes,
both vanilla type of kinks, and more dark type of kinks not often seen.

You play as a 19 year old male student who has traveled to,
Japan through an exchange program alongside your best friend, Jackson.
Your crush, Julie, and her closest friend, Alice, also joins the exchange program to Japan!
You've yet to build up the courage to confess your love for her, will you ever be able to?

Despite Julie and Alice's academic purpose of traveling to Japan, they have another objective in mind, to investigate the disappearance of Julie's older sister, Vanessa! Since Julie lost contact with Vanessa 3 months into her exchange program, it's been 3 years now since she has heard from her dearest sister.

Everything is not as it seems in Japan! A company by the name of "Love Dolls" sells insanely realistic looking sex androids that obeys the owners every little order. This invention is Love Dolls Co.'s solution to the rise of Japans crippling loneliness! For a company that's only been public for 3 years they've gained quite the popularity!

What are these dolls actually made of and how come they look so realistic?​