SINN-001 Toilet Slave Education! 'I was in love with my boyfriend, but I got taken by an old man and educated as a cum dump.' 18-year-old Runa

"I used to be a studious girl who always wore glasses, but recently I finally got a boyfriend! Of course, we're head over heels in love. But we haven't kissed yet; after all, I want to cherish those moments... So instead, I'm secretly being trained as a 'meat vessel' (it's so embarrassing...) by the uncle who lives at my boyfriend's house. I smile and swallow all of his bodily fluids, and recently he's been tempting me to make a baby with his sperm."