I Won't Sleep with You for Free

I Won't Sleep with You for Free synopsis: Miyako Kirishima is a poor university student and aspiring teacher who appreciates being economical. She enjoys lunch with Yui Nakano, a friend whom she occasionally tutors, one day. Yui invites her to a love motel on the way home. Miyako is apprehensive about having sex with a friend. Yui, on the other hand, cuts her off, giving her 30000 yen for sex! Miyako then finds herself in more "transactions" with her other friends at her women's university!? The curtain goes up on a story of yuri, friendship, money, and sex.