No show penalty for flight missed during floods at Chiba / Narita
Hello everyone! First of all, I hope everyone and their families are okay after the Chiba floods. Last week, on Friday 14th, I had a flight from Narita in the morning. I saw the news when I woke but still try to go to airport with a taxi, ofc couldn't make it since it was impossible to actually get to airport. After 5 hours of a taxi trip, I came back to Tokyo, get myself a hotel again, and contacted the Korean Airlines. but they refused to return the ticket since flight already happened and I was labelled as "no show". Yeap, probably no one made the flight besides those who have connecting flights and already at the Narita, and they don't care there was a literal disaster happening because plane was there and it made the flight at the end.
I was wondering if anyone in the same situation and/or have any idea what can be done legally. Since, I am not Japanese I have no idea about my rights unfortunately.