This is episode 48 of 62 of Don't Mess With The Teacher. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
A top preschool teacher gets into a brutal beast world. Instead of dying, he tames savage monsters with a squeaky toy and candy. The beast parents are terrified, thinking he's a dark god. He just pushes up his glasses: "There are no bad kids, only bad teachers."