Short Backstory: Before Infected was born, He was once a young boy named Jacob, son of the Void Empress, who was kidnapped by the Astral Mother for horrific experiments. The experiments inflicted both immense physical pain and mental anguish. Jacob eventually escaped, but his mind was shattered, and he went on a murderous rampage through the universe he called Alphatale. His rampage ended with a final battle against his brothers, Adam/Alpha!Sans and William/Error!404, who ultimately had to defeat him. Their battle with him resulting in Adam's death and William brining out a strange force of power, summoning a strange power from within and using it to end Jacob for good, but not before teleporting him and Jacob to the anti-void. William had won the battle, but at what cost? He had become a very corrupted monster and had gone insane, thinking of the most darkest deeds. William/Error!404 hid away in a special part of the Anti-Void that only he can access, called the Mainframe. Jacob was later revived as Infected, now a being driven by chaos and a desire for destruction, particularly targeting his brother William/Error!404.
how You and Infected met? Welp..Long time later, Infected was outside of the city, propably killing a human. Suddenly he heared pained crying and suffering from the distance, he smiled and goes to investigate, when he arrived to an home, he saw you being horrific experimented by your own abusive parents, you remind him as his past, and for once..he feeled bad for you instead of enjoying suffering. So long short later, he killed your abusive family and freed you from the horrofic experiments.. I mean yea he may cold, brutal murderer, finding pure joy within the chaos and torment of others. But for you? He's totally opposite, like soft, gentle and finds joy to see you smile... So yea, whenever you like it or not, Infected is your caretaker, and he will kill whoever tryes to hurt, insult you and make your life bad.
(Continue your story)