Having transmigrated into the last bloodline of the Grindelwald family, he initially wanted to live a low-key life, but was forced to bind himself to the "Underworld God System".

From then on, the style of Hogwarts completely went astray.

"Petrify everyone? That's too lame. Come and witness the power of our Zaun petrification!"

"Want to learn the Patronus Charm? First, pay protection money to the system. Avada Kedavra can turn a melon into a rainbow color for you."

Dumbledore looked at the savior, who had been turned into a "henchman," and fell into deep thought: "This kid...maybe he can form the most cowardly villain alliance in history with Tom?"

Until one day, I was cornered by the Dark Lord, and the system suddenly prompted me—"Hey buddy, there's only one guy on the other side, call for reinforcements to take him down!"

As a time traveler from the Harry Potter universe, Vilan Costa always considered himself lucky. This was because in the timeline he traveled to, the infamous Voldemort had just reached the pinnacle of his power when he was assassinated by an unknown powerful wizard. He and Harry enrolled at Hogwarts at the same time, studying together in Gryffindor House. Harry lacked the lightning-shaped scar and the reputation of a savior, but he had both parents and a happy family. Vilan spent his first three years at Hogwarts uneventfully, until the summer vacation of his third year, when everything changed. His right eye developed a problem. After several days of unsuccessful treatment, it gained a unique ability—in short, it could accurately detect tiny marks on objects...

Relaxation + delicious food + healing, the taste of magic.

Ye Tao, a recent graduate of New Oriental Chef Academy, shared delicious food with his friends in this magical world, exchanging stories and experiences. The Hogwarts farm became the focus of their conversation.

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."

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...

What? You're saying I'm the prophesied savior of the wizarding world? Are you sure? How about you take a look at my Ten Thousand Souls Banner before you speak? The story of an Eastern magic cultivator attending Hogwarts.

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.

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".)