My theory is that Sasha wants to apologize to Luce because she was the one he seriously hurt. In my judgment, he is the crown prince and the one who ordered the handwriting of Luce to be copied in order to end her engagement to Leo. A panel displays an illustration of Luce as a little child. It seems that Sasha first laid eyes on Luce when she was a young child and instantly fell in love. He fabricated her letters to end her engagement when he learned she was getting married. He knows Luce won't forgive him, which is why he informed her he might not be able to stay with her. Again, this is just MY THEORY










That would be very disgusting, don't give me the "Oh, but he became 18 y/o again. Its fine if we ship it" absolutely not. He didn't went back in time nor got reincarnated to say that its fine just because he's 18, his body went back to his prime years but not his age because he didn't die and reborn. He's still 65 y/o with a body of 18 y/o, if he paired with Yuna, that would become Pedophilia. And that's disgusting, please don't ship Peter with Yuna.
They’re more like a father-daughter duo to me like although he ages backwards, he still gives off fatherly-grandpa vibes. I hope he adopts her in the future