Hogwarts: The Gods Are Dead, and I Become the God of Nature

[No romance + coming-of-age + Hufflepuff + magical research + laid-back slacker + Hufflepuff's finest successor]

A burned-out office worker who pulled an all-nighter watching Harry Potter movies dies suddenly and transmigrates to Britain, becoming an orphan named Loris Yast at Maple Hill Orphanage.

Loris Yast always thinks he has transmigrated to an ordinary world, until he sees a round-faced Scottish chicken at age eleven and realizes he has ended up in the magical world.

It isn't until he meets Lily, Snape, and the others at school that Loris realizes he arrived too early.

Loris discovers that he has an affinity for nature, so he joins Hufflepuff.

Lily: “Loris doesn't seem like a Hufflepuff at all. No little badger would beat up an Acromantula in the Forbidden Forest.”

Hagrid: “Loris is definitely a proper little badger. Aragog's upset, of course, but the Acromantula Loris roasted is delicious.”

Sirius: “Loris is a terrible Hufflepuff. He actually helped that Slytherin slime.”

James: “Loris is a truly inscrutable little badger. I'd like him a lot more if he hadn't left me hanging from the Whomping Willow.”

Lupin: “Loris is a gentle person, as long as you don't trample his plants.”

Loris: “I'm just a laid-back honey badger, not a useless one.”

Plants are nature, and they have abundant vitality, so it's only natural to use them as blood bags...

The stars are nature, so I can divine with astrology...

Time, fate, and the soul are all nature...