C274 Wedding Invitation

One day, just as Yuhan was leaving work, she unexpectedly received a package. Confused, she thought, I didn't order anything, did I? She signed her name, took the package, and was about to open it when Hanhan snatched it away. "What did you get? Let me see first. It's so thin, what could it be?" Hanhan quickly tore it open and found a card inside