Being born in the Winged-Messenger race but having such the tiny useless wings, Shin was abandoned right after he was born and has lived his whole life being disparaged, ridiculed & bullied.. In order to soothe his heart, the Guardian God assigns Shin to tend the God who has the same fate to share & discard the feelings of inferiority complex, the Fluffy God resides furthest away at mountain 32.
The calamity begins when Gods & Messengers nearby mountain 32 start disappearing w/o trace!
Kamisama to Tobenai Tsukai