>>279984047Fuutarou has been living in Tokyo for five years. We have confirmation in chapters 1 and 32 that Fuutarou is still asleep in the waiting room before the wedding ceremony begins. So what happened yesterday that he is still asleep in the morning on the wedding day? And how does Yotsuba know that Fuutarou is possibly still asleep right now? Then you can see here (https://i.imgur.com/bjXiHJr.jpeg) in chapter 32 on the wedding day on Isanari's cell phone when he called Maruo that it was "9:47," and we see in chapters 1 and 32 that he is asleep, which Yotsuba somehow knew. Fuutarou apparently couldn't sleep like usual yesterday, which is why he is still asleep at that time.
When Yotsuba said that Fuutarou arrived in Nagoya yesterday, it doesn't necessarily mean that he'd already been in Nagoya for 24 hours after Yotsuba arrived at the cafe. We don't know exactly when he arrived in Nagoya yesterday. He could have arrived in Nagoya at 11 p.m., and that would still mean he arrived in Nagoya "yesterday." A lot of things could have happened yesterday, and later that evening they had sex, and then he took the train and arrived in Nagoya around 11 p.m. I think that would explain, for example, why he's still asleep in his wedding. Who knows what it was like without any real information?
We don't have a real description of yesterday. We basically have almost no real information about yesterday other than that he arrived in Nagoya yesterday and the fact that Yotsuba and the meaning behind her words with her sisters' grinning like that is the only implication as to why Fuutarou is still asleep on his wedding day.