what is this guy, did he go back to childhood?

I took a deep breath and prepared my voice. "I love this guy behind me so much!"

I hope he is happy.

"For the last time, scream that you're going to marry me." He ordered.

Let's shout to finish it, my voice is tired.

"I will marry y--- what?"

I faced him when I realized what I said. But I just held my mouth when I saw him kneeling in front of me and facing me with the ring that... I groped my neck, the necklace that the ring was on was gone. That's the necklace he gave me two...