'Bi-kku!!' (Now... something in my ass... The train is crowded, it was just an accident right...?) The sudden abnormal disrupts the peaceful days. The beautiful and easily pushed-over student gets molested. 'Bi-kku!!' (Maybe I'm a pervert...) Struggling to hold back the voice from the unfamiliar pleasure. Students who are sensitive and silent are easy targets. 'Drip drip drip...' (Wetting myself is so embarrassing... Don't look...) A pure-minded beautiful girl, who doesn't even know the word 'slut,' gets absorbed in pleasure on the train.
