Yui, a specialist student who is shy and doesn't talk or interact with people much while working part-time as a cleaner. She has a nice body with G-cup huge breasts and a big ass, though it's not noticeable through her clothes. After finding out that Yui has such huge tits, her coworkers at the part-time job and men at work take advantage of her being quiet and not likely to refuse, forcing themselves on her and messing with her sexy body as they please.
