The Princess of Convenient Plot Devices, Vol. 1 (manga)
Mamecyoro
Paper Book
After reincarnating into her favorite BL novel, Maki (now Octavia) has the perfect opportunity to fangirl over her favorite fictional couple, Sil and Prince Sirius, in real life--except she's Sirius's sister?! If that isn't awkward enough, she's expected to give up her firstborn child to be their...