FNS-237 - My childhood crush is now the #1 sex worker... 3 days of non-stop, no-limit pleasure living together

I heard rumors that my childhood crush had become a top-tier sex worker. Suddenly, she calls, asking to crash at my place for a few days. Before I could process it, she was at my door. Feeling guilty for staying for free, Rin decides to 'heal' me with her professional skills. 'Don't worry, I'm number one for a reason.' From every service technique to the real thing, my childhood friend absolutely destroyed me. My blissful 3-day life begins.