HMN-856 Sawa Yamashita, the girl who gets cummed inside

I had a boyfriend I'd been dating since school, and our first time having unprotected sex was at school after graduation. After the act, something bothered me deep down, and I realized, "Ah, I was in love with Aizawa, a classmate." After realizing my true feelings, I gained the ability to time travel if I wished for it. I wanted to have unprotected sex with Aizawa for the first time, so I restarted the world many times, but everything went well—from casual sex to being raped and having unprotected sex...