In October 2009, Chaosbahamut123 submitted the original version of Thawing Permafrost. It was a tangle of Author Avatars, Wish Fulfillment, and Plot Holes. The series spanned a total of two complete fics and one incomplete fic.Cut to April 2011, and Chaosbahamut123 (now Wandering Wordsmith) submits a rewrite of the original Thawing Permafrost. There were improvements. Lots of them.Set three years after Season I of the Rosario+Vampire manga, the plot centers around a new, British, human transfer student named Dan, who comes to Yokai Academy because he wants to study abroad and his parents refuse to fork out the money for an international college, and has no idea about the existence of monsters. There, he meets his homeroom teacher Mizore Shirayuki, who finds out that he is human after one lesson with him. After a meeting with the Chairman, Dan is offered the chance to return to the human world, or stay under Mizore's guardianship. He opts for the latter, and his adventures and mishaps snowball from there.Currently ongoing, the new series contains the old gang from Rosario+Vampire and a new cast, with some taken and developed from the original Thawing Permafrost. As of chapter thirty-five, the third story arc is finished, and Thawing Permafrost is moving into the final arc of the book.Thawing Permafrost can be found here, and a trope list in dire need of some love can be found below.
Another Dimension: Yokai Academy is situated in the Borderlands, a dimension literally on the edge of the Human World.
Author Avatar: Averted - almost. In the original Thawing Permafrost, Dan was a direct port of the author into Rosario+Vampire's universe. In the rewrite, he's been developed to stand alone as his own character, though trace elements of being an Author Avatar (like the name) still exist.
Awesomeness by Analysis: Dan fancies himself as a good judge of character, and actually guesses Mizore and Kotsubo's foul past. When put into a dangerous situation, however, it doesn't work nearly as well.
Curbstomp Battle: Kaiyo against Masumi. She leaves him as a chattering wreck shortly after unleashing her true form. It only turns around when she reels her abilities in, to prevent Dan from suffering the same fate.
Curtains Match the Window: Mizore, who has blue hair and blue eyes. Also Dan, to a slightly more boring extent, who has brown hair and brown eyes.
Dark Secret: Dan was a victim of a knife attack the year before he enrolled at Yokai. Whilst the wounds were minor, the emotional damage was far more serious (especially considering how it was a few of his classmates that did it.)
Dan: "The only cuisine they serve here probably requires a squeezy bottle and one very soft tongue."
Defrosting Ice Queen: Instead of relying on distance from everything painful to her including all of the old gang, Mizore has started to reluctantly rely on Dan as a Living Emotional Crutch.
Demoted to Extra: Kurumu and Yukari have been given only small roles thus far, Koko has had only a cameo, Tsukune a mere mention, and Moka has only had a passing reference as part of "My friends, from Yokai."
Door Stopper: By the author's count, as of chapter 35, Thawing Permafrost now spans 518 pages.
Emotion Eater: Chapter 37 revealed antagonist Kaze to be a Defacer, adapted from Dungeons and Dragons lore.
Erotic Dream: Dan has a rather pleasant Dream Sequence, and is interrupted by the focus of his dream. He is, as is stated, "glad that his jeans were slim-fit."
Friendly Target: Dan has been made a target because of his relations to Mizore and Kaiyo, by Kotsubo and Masumi respectively. He exploits the second instance.
Gossip Evolution: This is character-specific, but Kia's habit for gossiping leads her to mistakenly believe that Kaiyo is a man-eater.
Gossipy Girl: Kia openly admits that she likes to gossip. This like leads her to believe that Kaiyo is an incredibly dangerous individual to anybody male.
Growing Up Sucks: It's implied that Mizore enjoyed her years as a student far more than she does her adult life.
Halloween Arc: The Festival Arc has given Mizore's homeroom class the opportunity to work on a Halloween café, inspired by her and Dan's experience over the summer break.
Harmless Freezing: It's implied that Mizore does this to Yukari, in order to let Dan visit Ruby.
Heel Face Turn: Iwao. How it happened is a Noodle Incident that both Kia and Mizore know, but neither will disclose.
Jade-Colored Glasses: Dan's past prior to enrolling is his (as he justifies it, anyway) reason for being very slow to trust anyone at Yokai. As of chapter 21, he's only revealed anything of his past to one person.
Japanese Monsters Speaking English: Averted; Despite that the story itself is written in English, the author recognizes the Japanese setting and occasionally reminds the readers (often through a comedic moment) that all the characters, including Dan, are speaking Japanese.
Meido: Kurumu's employed at a Maid Cafe, but carries it into everyday life to mess with Dan.
Monster Mash: There's a Yuki-Onna, Kuchisake-Onna, two Witches, and two unidentified monsters in the protagonist's direct social circle. There's also a Kraken and another unidentified as villains.
Motor Mouth: Dan, whenever something isn't going as planned or someone says something that catches him off guard, babbles.
Nice Guy: When presented with an opportunity to learn about all of Mizore's past, Dan refuses on the basis that he wants to hear it straight from Mizore, when he deserves to hear it.
Non-Action Guy: Dan is about as useful as a chocolate teapot in a fight. Except when he pushed Mizore out of the way of some tentacles in an early chapter.
Noodle Incident: How did Kia get Iwao, Masumi's lackey, to let her and Mizore go? Answer: She won't say, and even her answer isn't an answer.
The Omniscient: The Chairman is implied to be this. Naturally.
Promoted Character: Despite being part of the News Club in the manga, and therefore technically a central character, Mizore is given a lot more focus in Thawing Permafrost (seeing as she's one of the lead protagonists).
Psycho Ex-Boyfriend: Kotsubo was this in the manga, to an extent, and he's back in Thawing Permafrost.
The Quiet One: Iwao. Important for the same reasons as above.
Running Gag: Kurumu treating Dan as her master, after the Summer Break Arc.
Scar Survey: Played straight, but not post-copulation. Mizore notices scars on Dan's back whilst he sleeps, and he doesn't say anything until after they're booked into the love hotel.
Stealth Hi/Bye: Mizore's habit of climbing through Dan's window to either say hello, wake him up, or deliver lollipops is treated as a normal thing.
On the flipside, Dan sneaking into Mizore's room to talk causes her to freak out.
Stiff Upper Lip: Subverted. Despite being British, Dan is one of the least imperturbable characters in the whole fic.
Stranger in a Strange School: Dan is the only human in Yokai Academy, and whilst there is no direct, lawful punishment for him if this is found out, the student body will be most likely not pleased if word does get out.
Teacher/Student Romance: Dan currently has a one-sided infatuation with Mizore. The romance blossomed in the Festival Arc.