What was the intent for making Rem sacrifice herself for Misa?


We know Light is clever and smart and almost devilish? But I don't understand
why Light wanted Rem out of the way?

What was his motive and what would have happened if it went wrong?




Rem wanted to protect Misa and would kill Light if he let/caused Misa to die.
Misa, however, was a good tool for Light and he could not kill her without
raising suspicion towards himself.

Light also wanted L to die, but he could not kill him without knowing his real
name. Rem could see everyone's name with her shinigami eyes, but would not
kill anyone unless Misa was in trouble. So, Light put Misa in trouble and
pressured Rem into killing L and Wastabi. As a result, Rem died and Light
thought he had no more people in his way.

If Rem didn't kill L and Wastabi, Misa definitely would have been caught again
and killed. There would have been a lot of suspicion towards Light, but he may
have been able to talk himself out of it. If he did not, he would have died
also. It was a gamble.




Because Rem threatened to kill him should anything happen to Misa Misa. If he
planned to use Misa Misa as a tool and perhaps sacrifice her eventually. He
would have to get Rem out of the way.

