Nagisa was mostly doing simple dish for herself, but since the hamster got along they're eating almost like a big family, if she's not burning calories with other couple activities and her work is stressful this may lead to gain extra weight...Trains aside i'm surprised one would gain weight so easily in Japan with ppl walking everywhere, other than like sedentary office jobs, but i wouldn't be surprised if 5 pounds was a bigger deal to them than a larger gain
lol nice that he easily agreed, other than a long time family friend, it'd be hard to accept versus them being the same gender