Absolute garbage normal people don't act like that.
True story:
A girl had consensual sex and later broke up with her partner.
However, the girl had been seeing two other boys who were in love with her, and to make herself look better, she said she had been raped.
Later, the boys tortured the boy she had sex with for several hours, and he would have died if passersby hadn't happened to come along. (Yes, the girl was there and didn't reveal the lie.)
I find the manga more normal than my story here.