Before he died at Honnouji in 1582, the great warlord Oda Nobunaga stood before a statue of Buddha and thought to himself that he'd committed so many sins that he'd very likely be reborn as a dog. He never expected that Buddha would take his words literally, however, but the next thing he's aware of, he's in the body of a Shiba Inu named Shinamon in modern Japan! Less than thrilled at the fact that his human warlord consciousness is trapped in the instinct-bound body of an adorable house pet, Nobunaga struggles between making the best of it (he can have that ruff all the Europeans were wearing!) and being frustrated with his reality (the ruff turns out to be a bath hat and now he has to have a bath). Is it better or worse that many of his fellow warriors also seem to have been reincarnated in canine form – and that his enemy looks like he lucked out and got to be a human?
Oda Nobunaga is reborn as a Shiba-inu in the modern world. One day, at the park, he runs into his former acquaintances and rivals – all of whom have also been reincarnated as dogs
Akechi Mitsuhide, who was responsible for Oda Nobunaga’s death, appears to have been reincarnated as a handsome young man named Hideto. Cinnamon’s owner, Ichiko, develops feelings for him.
Ichiko buys clothes for Cinnamon. The dog park holds a barbecue. Ichiko considers buying a swimsuit. Cinnamon and the others become envious of Gilbert’s relationship with Lily.
Cinnamon is desperate to go for a walk, but it’s raining again. Lucky finds a new, questionable hobby.
Cinnamon teaches us about hourougan, a portable ration used by soldiers in the Warring States era.
Matsunaga Hisahide, the rock star of the Warring States era, makes an appearance in the neighborhood.
Ai becomes obsessed with a morally ambiguous TV superhero, and Boo, Cinnamon and Lucky want in on the fun. Cinnamon discovers high-tech toilets.
Cinnamon and Ichiko watch a horror movie, leading to all the expected consequences. Lucky and Boo rekindle old rivalries.