How did he escape from underneath her, when she was obviously weighing him down?
That phone charger seriously looks like a brick to me. That is why I wouldn't buy a charger from an imaginary brand, assuming it was even possible to do so.
Not to mention, from his pov, he should have remembered to shut the window before handing over the room to her. From Amano's pov, not sure how she didn't notice it was open, as she was there for quite a while and it was raining.
I'm kind of curious what she was eating in her dream.