The eroticism of a college student having immediate sex at the entrance while unable to make noise. In a couple's relationship, they passionately pursue pleasure with instant blowjob action. Due to time constraints, they hurriedly begin sex at the doorway, urgently trying to enter the room while the sound of neighbors receiving deliveries can be heard—adding thrill in a thin-walled apartment near a university outside the 23 wards. The intimate connection with her slender, extremely fair-skinned body intensifies the erotic atmosphere within the confined space.