Hermes is a psychopomp, A psychopomp is a guide, whose primary function is to escort souls to the afterlife, but they can also serve as guides through the various transitions of life. The term originates from the Greek words pompos (conductor or guide) and psyche (breath, life, soul, or mind). So him being on the wall of a hospital fighting Death is a bit weird, since he's half Death himself. It's like Moon Moon but with dying people.
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