Concurrently
The Mona Lisa is in front of you. "You must all paint the Mona Lisa concurrently," says your art class teacher.
Pay close attention to the students around you. Don't go too fast or too slow, or you won't finish concurrently.
けん
か
None
Your entire class finishes concurrently. You look at your finished result. Wait, that's not the Mona Lisa. You painted Ken (けん) the samurai.
It's a nice painting, the frown is just right, and you finished concurrently with everyone else, but you're probably going to fail this class.