The music in the background is his proposal song but it was just instrumental music so the place will not be dull as the guest settled themselves. Everything was done according to how Ji An wanted and planned it.
All the guest admired the whole set up and they felt very welcomed, the atmosphere in that hall was so warm and loving making them feel relaxed. They can tell that it's not a wishy-washy wedding. Nobody discussed business, after all, they are there to celebrate the couple's wedding.
Cheng Ze and Ji An were the last to enter the reception hall. Everyone congratulated them including Eric. He showed himself in front of Ji An while Cheng Ze was few steps away from her and his back turned to thank the guest who congratulated them.
"Congratulations! You look very happy and I'm happy for you, for both of you," he spoke sincerely in front of her and glanced at Cheng Ze who has his back turned. He also has a smile on his face, like he was not hurt in any way.