What you can understand from the videos released by Japan and Korea
Bad weather → a lie Rough wave → a lie Flight just above the ship → a lie Flight at low altitude near a Korean ship → a lie It was a threatening flight → a lie Flight was close enough to shake the hull → a lie We felt a danger by the flight of a patrol aircraft → a lie It was an obstacle to relief activities → a lie It was a rescue activity → a lie We just using an optical camera → a lie We did not use radar → a lie We used a radar to find a fishing boat → a lie Called radio was weak → a lie We thought that you were calling a marine police → a lie English pronunciation was bad → a lie
As might be expected  · With Visible distance  · 121.5 MHz (VHF emergency frequency)  · 156.8 MHz (international VHF)  · 243.0 MHz (UHF emergency frequency)  · Called at three frequencies  · "Hull number 971" (in English) It is impossible to say that you could not hear it.
Or rather "a lie"
Hey Korean people, What do you think about these lies? The number of lies increases steadily. (LOL)
In addition, a North Korean ship that did not transmit a distress signal "How did you find it?" Moreover, in Japan's EEZ far away from Korea.(LOLMAO)