Even with two wives and a loving, yet missing, girlfriend, it was only after their shared journey that Rio began to see Rose in a new light - as a cherished sister, a sibling bond he had never experienced before and might never have again.
He was aware that Second Mother wished for him to marry Lily Havenglow, but after growing closer to Rose and strengthening their bonding during their recent adventure, Rio now saw her as a beloved little sister, distinct from his potential relationship with Lily.
Rio playfully ruffled Rose's hair, his voice warm and teasing, "You better hurry, I don't want Second Mother to worry anymore because of this little demoness."
"Big brother, you're mean," Rose playfully pouted, her eyes shining with gratitude, as she continued, "okay, I'm going now..."
She reluctantly pulled away from him and turned toward the portal capsule.