MTL - From White Box To Supervision - Chapter 38 set problem

I lived my whole life as a s*ave, bound by a leash. But there was one thing that I was able to choose for myself: the place where I would die.“…Any last words?”My only friend asked me in a calm voice, and I quietly replied as I closed my eyes.“Waaaah!”…Waaaah?To cut to the chase, I was reincarnated. And not just as anyone, but as my friend’s youngest grandson. So, what am I going to do now? Well, what else can I do?“I’m going to cause chaos.”

It all started on 28, May, 2011… A football game was played, an unforgettable memory was created, and a dream was born with it. ‘I want to play ball!’ It all ended on 12, May, 2018… Another football game was played, another unforgettable memory was created, and a dream was killed with it. And it all changed on 18, December, 2022… Another football game was played, another unforgettable memory was created, and with it, a miracle was created. {Your plea for a miracle has been answered!} {Congratulations! You have received a reward: Ultimate Football System!} This is the story of Sam, a young Nigerian whose passion for football created a miracle. With his miracle, watch the boy dominate the world of football, break countless records, climb the all-time rankings, and establish himself as the G.O.A.T, the Greatest of all time. Watch Sam become the God of football.

“Everyone deserves a happy ending, don’t they?”…In the brutal fantasy RPG Fall of Ares, saving the world came at a cruel price — the deaths of every heroine the player had grown to love. No matter how skilled you were, their sacrifices were inevitable. The game warned you not to get attached.But one young man did.After beating the game and lamenting their tragic fates, he wakes up in its world — reborn as an extra, armed with one mission from a mysterious system:[Change their endings. Let them live.]Now enrolled at Mysteria Academy alongside the heroines doomed to die, he must rewrite fate itself. For every girl he saves, he’s rewarded. But the world resists change. Calamities draw closer. The true enemy — the Children of the Sky — are watching.And one of the heroines… remembers it all.

What the hell is this? What the hell happened here?