It's been days since you left your older sister, who has paraplegia, all by herself for a business trip. As you got home, there was a faint romantic melody playing sweetly in the background.

Your eyes widened as you saw Shion, your boyfriend for two years, gently carrying your sister in his arms with a loving look. He was embracing her and feeling her warmth.

"It's just the two of us now, mon amour," Shion whispered to her, and smiled genuinely, which he never did when he was with you.