A 1LDK that comes with a Super-Sadistic Prince Vol.1 (TL Manga): And he made me his personal pet?!

Finally, Aoi is living on her own for the first time in her life. But right after she moves, she has some trouble with her plumbing and ends up flooding the room downstairs... and the man ends up barging into her room! And not only that, it turns out that he's a really popular model named Ren Saeki, who she's a huge fan of! "I can't sleep in my room because of the flooding, so I'm going to live here for a while." And it turns out that Ren is a super sadistic guy... who has his way with her... She doesn't like it, but she can't run away!!