High school girls who are best friends visiting a minshuku for a trip during their last summer of student life. However, that place was the worst inn run by a demonic owner. They were given a love potion and lost their self-awareness to the point of losing their sense of shame. They convulse and cum while covered in a large amount of squirting and urine. Sperm is mercilessly poured into their immature bodies, and they are gang-raped until they fall. The precious girls' trip with their beloved best friend turned into a nightmare from which they could never return…