Harry Potter: The Supreme One

A promising young man from the 21st century transmigrates overnight to a magical world in the 20th century!? He doesn't remember a thing, but his "parents" don't seem to mind at all!?? He's a fairly wealthy pure-blooded Slytherin, yet his own housemates ignore him!??? And that green-eyed savior claims he's from sixteen years in the future, after the war!???? And the black-haired man hiding in Diagon Alley has a pair of strange red eyes!????? And among the first-year students there's a child who looks exactly like Lily did when she was young!?????? V/H: The pacing and plot are completely different from the original and from the previous life!!! Don't make fun of the title for being so full of chuuni energy and Mary Sue energy. I really can't come up with Chinese titles (which is why I write Western BL)... The main couples are Snarry and a couple featuring a partly original character (because I don't want an original character paired with a canon character). Romione stays together, and Draco will end up with a girl from the original series. There are lots of made-up supporting characters. The story takes itself seriously, and the logic should be fairly rigorous. I may be a bit of a stickler for details, and there will be plenty of foreshadowing... Please don't rush to hate the partly original character. There's deep, filthy water hiding beneath the surface. Since I need to establish the original character, there will be some setup at the beginning. I wish all the wonderful readers who can stick with this a long life and peace and happiness! I don't really like sticking to a set pace. I enjoy throwing in all sorts of conspiracies and schemes. This is my first story, so please go easy on me... Anyway, I'm sorry for hurting your eyes with this (._.)