Akio, an unlucky businessman who gets lost when he climbs mountains and buys onigiri (rice balls) with no ingredients, ends up living together with Tamaki, a dog demon called “Sending Dog”.

Akio, who likes human bad luck, sometimes has his bad luck sucked up by Tamaki, and he is able to live like a human being.

However, there is a naughty side-effect of this action: he feels good...!

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