Embrace

 Embrace (抱擁, Hõyõ) is the fourth chapter of Volume seven and 56th chapter overall.

Plot
Misa digs up the Death Note in the forest and regains her memories. Along with the notebook, there is a note instructing Misa to remember L’s real name from the time she met him at To-Oh University. She should write his name down on the Death Note but not until after Light gives her the word. He also instructs her to get a piece of the Death Note, rebury the notebook, and touch Light with a piece of it.

However, Misa soon becomes miserable once again because she can’t remember L’s real name. Just then, Ryuk appears from the shinigami realm. Misa gives him an apple from Light and in return Ryuk gives Misa a shinigami apple to try from the shinigami realm. She explains to Ryuk that she wants to make the shinigami eye trade once again because she can’t remember L’s name, and he doesn’t want to disappoint Light. Ryuk agrees but warns that her lifespan will once again be cut in half.

Light knows that he can now kill L anytime he wants to if Misa remembers his name. If she doesn’t, he expects her to make the shinigami eye trade once again. Misa comes back to the headquarters and is standing in front of the security cameras. Rem is shocked to find Ryuk standing behind Misa. She realizes, to her horror, that Misa has once again made the eye trade with a shinigami.

Light goes downstairs to greet Misa, and she touches him with a piece of the notebook. Light can see Ryuk once again. Light pretends to be shocked at Misa making the eye trade, however, he promises that once L is gone, she will be part of his new world.

Conception
Ohba said the chapter's title "Embrace" refers to Misa hugging a lot of things in the chapter, like the notebook, Ryuk, and then Light in that order. Even Ryuk says "all this girl does is hug things..."