MTL - The Fallen Merman - Chapter 102

I’m Kuna, a former countess’s daughter, working at the café of the Adventurers’ Guild “Shield of the Silver Wolf.” Together with my Carbuncle, Lulu, I spend my days serving customers with special drinks infused with healing power!One day, a customer from my own White Wolf tribe visits…With the newly joined companions, I find myself facing my family, who is trying to take me back to the Kingdom of Aluda!The happiness everyone in the guild has given me—I will protect it this time!This is a life-reversal story filled with fluffiness and healing power!

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Four years ago, the first-ever Armageddon Class Anima appeared on Earth, destroying everything that it touched and threatening the lives of the entire world's population! But along with it came Superhumans that had the blessing of mana. They rose up to fight against the Armageddon, and leading them was the strongest Superhuman, KING.After two days and three nights of nonstop battle, KING gave his life to stop the Armageddon and give the Superhumans a fighting chance against the invading Anima, and everyone in the world remembers his good deeds and sacrifice!...Mark was just an average Superhuman living in City A. His daily routine was skipping classes and hanging out with his only two friends while hunting for Anima in secret whenever he could. But this easy life was not going to last for long as the hidden power he sacrificed a long time ago began to awaken once more![Initializing Superhuman System...][Recognizing Host... Host Recognized.][Parsing Constitution. Host Fully Healed. No Traces Of Residual Damage.]“Hello once again, Mark Vanitas. Has it already been four years?”