4.5 stars - Spoilers
I absolutely loved this! Misa was, without a doubt, the best character. Granted, she was idiotic and desperate, but I found her to be extremely entertaining. At first, I was confused by her unwavering devotion to Light/Kira. However, I was glad to see that there was a plausible reason for her being so dedicated to him.
I also liked Misa's Shinigami, Ram. His protectiveness towards Misa was really sweet. It's obvious that Light will use and abuse Misa, so I'm pleased that she has someone on her side. I especially loved the part where Ram threatened Light if anything happened to Misa. It makes the story more interesting when Light has numerous obstacles in his path. If he were to get away with everything easily, it would be really boring and cliched.
The antagonistic and one-upmanship relationship between Light and L was still highly enjoyable. They are so similar in their intelligence and reasoning, and it's great to see them constantly trying to outwit each other.
I have a feeling that L will meet his end. There's just something tragic about him. I just hope that Light also dies.
Overall, I'm really looking forward to Volume 5 and can't wait to see what happens next.