APNS-173 Female college student who handles sexual needs at the cafeteria Yuisei Yui

In that warehouse, misfits rounded up from the yakuza were forced into hard labor. The workers' physical and mental strength was worn down day by day, pushing them to their limits... One such day, a part-time delivery girl named Yui arrived from a cheap meal delivery service that came every three days. The men, who had not seen a woman in ages, pounced on Yui and subjected her to the ultimate humiliation. Since then, Yui's heart was gradually eroded, turning her into a tool for sexual processing and corruption. Soon, even the yakuza who controlled the place appeared...