"Brainrot" destroyer (fiction) (theoretically possible)

All: There is a guy we don't talk about.

Student 1: His head might be hollow as he doesn't know 27*3=81 and was the knight as he helped defeat a lethal black cobra dubbed the "Blackwyrm" in a battle.

Student 2: He went crazy after being hit one too many times causing a madness within him dubbed "Brainrot" which killed 8 students.

Student 2: Nobody believed us until they got attacked.

Student 3: He had to be sealed using chains in an abandoned school bus with orange slime mold as his source of food.

Student 1: Someone tried to beat him and succeeded, however the combination of being brutally attacked, the Hollow Knight's attacks and its madness and slime mold have led the challenger to become insane, having to be sealed, with 3 people being locksmiths crafting permanent locks........

Student 3: At least that's what they said would happen.

Student 2: With a combination of a weird medallion prompting someone else wearing a similar one to help and experience in brain surgery,

All: the challenger destroyed this madness once and for all.