Psychic Detective Yakumo, Vol. 6

The rape-suicide case ended sad and happy. The last chapter of this volume is the start of a two new cases, detective Gotou is in search of a criminal who killed his father with a hammer while Hakura begins her internship at a childerenschool and encounters a little boy (I think around 9 or 10 years old) who claims to see souls. The same ability that Yakumo has.
With the new case I can't remember any of it from the first time I read it.