Goodbye Ghosts!(2016)

Goodbye Ghosts! is a Japanese series following Madoka Tsutsumi, a reserved university student who has never acted on impulse. His quiet life shifts when he encounters an old man and a pink rabbit locked in a physical struggle. The rabbit reveals itself as the Angel of Death and explains that the old man is a ghost who died the previous day. Only Madoka can see them both. What begins as a chance encounter draws him into a supernatural world where he must navigate interactions between the living and the dead, uncovering secrets about the old man's unfinished business and his own unexpected role in the afterlife's mysteries.