This Is Hogwarts, What's the Use of the Eight Wonders?

On the eve of the First Wizarding War, Link, who traveled through time, became one of the three new Death Eaters selected by Voldemort to infiltrate Hogwarts undercover. The golden finger that comes as a standard for time travelers turns out to be an eight-magic skill training system, and Link was able to do it on the spot! Voldemort: Damn it, all my Horcruxes were swallowed up by that traitor Link using his spirit-binding general! Dumbledore: Link, who practices the Qi Dynasty, has tens of millions of times more magic power than Grindelwald and I! Flitwick: The three unforgivable curses were thrown out like beans by Link, who has mastery of the Sky Barrier! Nicoléme: Link used the magic machine to transform Muggles into wizards. This is the pinnacle of alchemy! Hagrid: With the help of Liuku Immortal Thief, Link is stronger than me and can eat better than me! There are also hands with dual cultivation of life and life, Daluo Cave with unlimited teleportation, and Fenghou Qimen with invincible domain. As each of the Eight Magic Skills was unlocked, Link, who was already standing at the top of the magical world, calmly said: "Mmm, it smells so good!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.