The End of the World Is Coming, Check in Live Broadcast at the Beginning

Traveling to a world where people lack security, countless people commit suicide every year because of their pessimism about the future. In order to inspire people's confidence, the protagonist, as a professor with "in-depth research on the emergence of the end of the world," was invited by the radio station to give a speech. However, what they didn't know was that the predecessor was also a pessimist and had committed suicide by taking sleeping pills before receiving the notice, so the protagonist who traveled through time had to give a speech in the predecessor's place. Note: There are many science fiction works in the original world that cannot be found in the new world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.