Seduced by her desire to please me... I, who calls myself a home security guard and shuts myself away in my dirty room, am suddenly confronted by a small girl named Kokoa, who overwhelms me with her "incessant loli dirty talk" and "innocent yet persistent erotic approach." Not only does she take my virginity, which I've protected for 28 years, but she also milks my sperm for the whole day in this virtual cohabitation story with a 143cm petite girl. Total of 5 parts.