Kona

Goyoh Rubiet did everything in her power to avoid an arranged marriage with the power-hungry Marquess Anthe Betelgeuse. Instead, Goyoh's sister is forced to marry him, but it's not long before Goyoh learns that her sister has been murdered by the marquess. Soon after, as she's struggling with guilt, Goyoh wakes up as a past version of herself. This time around, Goyoh is determined to accept her arranged marriage to save her sister. But is there any way she can avoid meeting the same grisly fate?

I not only reincarnated into someone who died in an absurd fashion, but I also took the crown prince's place and went to the secret neutral territory, where male members of the five imperial families gathered. As a result... my childhood friends know me as a boy. “Goodbye, guys." I cried in front of my friends who I would never meet again. That was because officially, I (the prince) was going to die soon! It was fun spending time with them, but I will never see them again. I hope everyone lives happily! \==== After many years, my childhood friends turned heroes who defeated the wild dragon visited me. "Was it you? The one who killed my friend?" “After killing the previous crown prince, the murderer is said to be living comfortably as a princess, right?” “I will torture you, so much so you'll wish for death." "Answer me. Why did you kill him?” Of course, they didn't recognize me at all. No, that's not the problem... the problem is that my childhood friends are trying to kill me. Wait a second, guys!