So he just died at the train station? These isekai stories always make me think about the people who have to clean that up. Imagine being the terminal worker or ticket taker and coming to work next morning and seeing this dude just slumped over and you realized he's DEAD and then your entire day is ruined because you have to call the cops and the paramedics to take this body away and then it's all over the news and you'll probably have your boss call you in and talk to you over it. Damn, that would SUCK.
I hope this story isn't too edgy and he can be friends with Japanese hero guy, it would be not fun if hero guy came back and dicked him over.