"You won't remember everything that happened at this time. You don't even remember that your souls were exchanged," Princess Vanetta explained with a heavy heart. "In other words, you will forget each other."
The four friends' tears flowed freely. Meaning, this moment is the moment of their farewell. They would never meet again after this. And it really hurt them.
Ronan still couldn't imagine, when he returned to reality later, he forgot that he actually had a younger sister. More than that, he was sad to lose Roselyn forever.
Without command, they embraced. This time without the sexual arousal in Ronan. He sincerely embraced his three best friends as a form of truly deep love for them. This was the first time Ronan truly loved someone. And perhaps, Reino felt the same way.
I don't know, since swapping bodies with Ruby, Reino's allergy to women has slowly begun to fade.