In volume 1 the bonus story is set ten years later in an alternate timeline where the world doesn't end, and Haru-San falls asleep talking about wanting to go on more adventures, but he is immediately reincarnated as a butterfly, and they cut right back to Haru-San waking up "Master. Master." rarin' to go.
Then again, it could also be left up to your interpretation, so maybe he doesn't die after all.
In volume 1 the bonus story is set ten years later in an alternate timeline where the world doesn't end, and Haru-San falls asleep talking about wanting to go on more adventures, but he is immediately reincarnated as a butterfly, and they cut right back to Haru-San waking up "Master. Master." rarin' to go. Then again, it could also be left up to your interpretation, so maybe he doesn't die after all.
A male Husky keeps on flirting with a female Shiba Inu, and she keeps on scorning his advances by biting him, but it's told for comedic affect, and the narration indicates that female Shibas are very choosy. One time she even bites him right on the scalp, and blood is pouring down his head, but they are very superficial wounds, and the Husky is very oblivious and doesn't show any pain.
The bonus story in volume 1 that starts on page 111 depends on your interpretation, but it ends with Haru-san waking up "Master" for their next adventure, but "Master" is the last human on Earth, so she's alone, yet not alone at the same time.
The last human on Earth arrives at the coast, and decides to go swimming with out any cloths, but no full-frontal, only bare back, legs, and featureless backside.
There is another scene at a hot spring, but she is submerged up to her breasts and barely any cleavage is shown.
Hermes rescues "Master" from a river and she is brought back to life. It is a retelling of "The Honest Woodsman" an Aesop's Fable about a man who looses his ax in the river, and Hermes retrieves first a gold and a silver ax, but the woodsman only claims his true ax and she rewards his honesty.
"Master. Master." the human protagonist is a teen and she is seen drinking many times. I'm not sure what the legal drinking age is in Japan, but for an American audience she is certainly under 21.
The main human protagonist is backpacking and often shown sleeping in a tent or outdoors, but technically since she is the last human on Earth, she can go and stay anywhere she wants. She often visits the Grey aliens too.
Then again, it could also be left up to your interpretation, so maybe he doesn't die after all.