Aogeba tôtoshi (2006)

Koichi is a school teacher whose father gets diagnosed with a lethal disease. His father will be spending his last months at Koichi's home as suddenly one of his students is developing a somewhat unhealthy fascination with death. Somewhat at a loss at how to deal with this, Koichi decides to use his father (once a teacher himself) as class material for his students in order to teach them a little about death, loss and mourning.