Ha! I guess I can go back to totally hating Light again. It’s quite incredible how this show’s able to lull you into a false sense of security (and security, for that matter.) Over the last arc with Higuchi (which I presume was a manga volume,) I got used to Light, L, Misa and the rest of the task force working together like a big happy family, but now… that red-haired bastard Kira’s back. And what better way to show he’s back than revealing how he’s a cheater on top of everything. That whole flashback of his deal with Ryuk and Rem was frustrating. They just made up those new rules?! Ack! I hope it turns out that whatever “old man” in the Shinigami realm that Ryuk’s referring turns out to NOT be OK with that.
L definitely suspects what’s going on, though. You can just tell from the way he’s watching the security feed. Light can hide things from him, sure, but Misa’s horrible at it.
Actually, the characters rag on Matsuda for being stupid, but she is just hopeless. The way they’ve shown different characters' approaches to using the death note bluntly reinforce that Light’s the only pro when it comes to shinigami power (as if there could be one.) He knew well enough that it was a awful idea to make the eyes deal… but her? She’s not thinking it through, at all.
Let’s break down the math…
On average, Misa would probably live to be 80 years old. If she’s 20, now, that means she’d only live to be 50. Well, she would’ve if she only made the deal once. But she made it twice, halving that half so she’s not only got a fourth of her life span remaining. Now, she’ll only live to be 35. She just shaved 45 years off her life for a guy who can’t stand her. I suppose that’s a metaphor for bad relationships, right? The real visual metaphor for all of this is that scene where she meets with Ryuk. Light knows to give Ryuk an shiny apple to bribe him; Misa agrees to bite into the Shinigami apple, even when it doesn’t look good, and then acts surprised when it tastes like sand. What did she expect?