You have a fire going on some dirt when a helicopter flies overhead. This causes smoke from the fire and the dirt to spread everywhere! It's in your eyes, your mouth, your ears! The smoke gets in your lungs and you can't breathe. Why helicopter, why!
The smoke is too much and you realize this is the end (えん) for you. You're gonna die here!
Currently there are no similar looking kanji which exist in the WaniKani learning system