I Went on a Three-Day Business Trip, and My Daughter Got a New Dad

On the third day of my business trip out of province, a new male parent suddenly joined my daughter's long-quiet class group chat. I tapped the voice message, and a deep, unfamiliar male voice came through. "Hi, everyone! I'm the school's new math teacher, and I'm Mengmeng's dad. I look forward to getting to know you all!" I froze and opened the member list, comparing the names over and over. My daughter was called Mengmeng. He was Mengmeng's dad, so who was I? I immediately called my wife. "Did the wrong person join our daughter's class group chat?" There was a pause on the other end, then she laughed as if nothing were wrong. "Oh, maybe..."