I'm a librarian who loves anime, manga, and reading a wide variety of genres.
I have decided that Lunge is creepy – willing to let a known killer go in order to go after Tenma. He reminds me a bit of L from Death Note. Anyway, both Lunge and the criminal psychologist assume the “Johan” is just another personality of Tenma's, and not a real, separate person. The bit at the end of the volume, when Lunge screwed up, was a shock.
This volume meandered a bit, but was still good. Tenma got less page-time than I would have liked. I appreciated that Tenma was able to win the trust of his criminal psychologist colleague – it shows that there's at least a chance he can convince people like Lunge to work with him, rather than against him. Nina goes after one of her parents' killers, not for revenge, but rather to help Tenma prove his innocence, not realizing that that's not his goal.
(Original review posted on A Library Girl's Familiar Diversions.)