Question: I had the chance to stay with my Japanese friend and his family during my trip to Japan. I noticed that whenever we came back from outside, he would say something to his mum, and she would respond to it. I guess he’s saying that he’s back but I’m not sure. I’m also a bit embarrassed to ask him directly as I don’t want to seem like I’m eavesdropping on their conversation. How do I say “I’m home” in Japanese?