Again
Under the ground, a head covered in dirt emerges... again! It's not the first time you've seen this buried head, nor is it the last. This dirt-covered head hides beneath the ground wherever you go, and keeps popping up to scare you again and again.
Picture the dirt-covered head popping up again and again. How can it move under the ground like that if it's just a head? You decide to get closer this time, and for once it speaks: "Get me out of the ground!"
さ, さい
ふたた
None
The dirt-covered head asks for help again and again, but you've only got a saw (さ). So you start digging with it, scraping the dirt away, until you see this head has the body of a cyborg (さい)!
Imagine how dirty you and your saw are after all this. At least you could help this cyborg with your saw. "Thanks again," it says, then runs off shaking the dirt out of its hair.