While others rely on wands to get to school, he gets to get to school by reading! In Lin Xiu's schoolbag, "History of Magic" is a 'history rewind device,' "Advanced Potion Making" is an 'improvement cheat code,' and even "Standard Spells" can be read with a hidden attribute of 'accuracy +20%'—the academic genius system tells him: read ten books and you can level up; solve dark magic incidents and directly unlock new abilities! Dumbledore's distant nephew status makes him the professors' 'tacitly known target of attention,' but when Wolfgang, a remnant of Grindelwald's party, returns with 'wizard supremacy,' when the Ministry of Magic malfunctions and dark magic surges, when the ladies vie to research new spells for him—he opens the last book, "Ultimate Guardian Magic," and finally understands: this year's Hogwarts doesn't need geniuses, it needs a shield that can withstand all crises!

Travel through the ruined magic academy, the epic battlefield of blood and fire, and the doomsday scorched earth where demons wreak havoc.

When Zhang Peiran opened his eyes in the cycle of death, the bricks and stones of Hogwarts Castle were being corroded by the Dark Mark, the smoke of war in Middle-earth obscured the brilliance of the Silmarils, and the Eye of Sargeras could be seen on the broken coastline of Azeroth.

Voldemort's power was infused tenfold by the abyss. The Mordor orc army, accompanied by the fallen Maia, swept across the earth, and the Burning Legion's twisted fel warships obscured the entire starry sky.

There is no way to retreat, only hands holding the magic wand and rune sword, walking alone in every world where eternal night is approaching.

(Advance warning: This is a long and endless story with no female protagonist. It focuses on the magic system. The current planned routes are "Harry Potter World", "Lord of the Rings Middle-earth", and "Azeroth World of Warcraft".)

The "Savior Training Manual," which details a life of leisure before encountering a ruthless killer, lists various activities from cooking, washing floors, and dishwashing to studying, running, and fighting. It emphasizes that persistence leads to proficiency, with occasional bursts of magical knowledge and even the acquisition of magical creature attributes upon leveling up. The manual then addresses the question: "Whose savior spends all day mopping and weeding?! Why is my skill still called 'Weeding' even though I can teleport?! Who wants the golden talent of the Exploding Tail Snail's fart?! Can't I just follow the storyline?!" The manual concludes with: "No! ...Four years later, in the Hogwarts Headmaster's office, Dumbledore unearths long-sealed letters. The manual outlines a training schedule: 5:00-5:30 sprint 10 laps around the neighborhood (youthful energy is amazing!) 5:30-6:00 do a handstand on one finger (what does a handstand on one finger even mean!) 6:20-7:00 weeding...

The magical barrier shattered under the spell of the cursed spirits! Dumbledore pointed his wand at the white-haired man emerging from the crack: "Are you friend or foe?" Gojo Satoru removed his eyepatch: "Here to rescue people—and incidentally, to have a cross-world brawl."

In his previous life, Harry defeated Voldemort, protected the wizarding world, protected Hogwarts, and became a great wizard like Dumbledore. After a long time, when he was about to leave, he thought of the blond boy. What will happen to them after their rebirth? Harry's life will also change, and his relationship with Professor Snape will also be unusual.

Chivalry—integrity, loyalty, honesty, keeping one's word, and fearlessness in the face of hardship—Amy is a Hufflepuff student and an insurer for Hogwarts. "Since fate has given me a second chance, why should I indulge in a life of extravagance again?" Amy is determined to teach Voldemort a lesson! The three stages of the insurance industry are all more fascinating than the last.

(The main text has been completed, and the movie-watching extra is being written)

Please don't mind this weird introduction.

After Bai'e and the pioneers offered the "Negative World" fire at the center of the Creation Vortex, his vision went black. When he woke up again, he found that he and his deceased Golden People companions had traveled to a strange world and shrunk to the size of a 10-year-old child!

As for why, just assume it was Aha who did it.

Dumbledore: Savior? Interesting.

Wan Die: Did I say to annihilate Wan Bang Nier Doron? HKS!

Na Ke Xia: Magic↗↘Skills↘!

Bai'e: Harry, why do birds fly?

Harry: ?

Voldemort: Don't come over here!

Xiadie: (smiles slightly)