Saiki Kusuo no Ψ Nan: Season 1, Episode 8

1 - 8: The Scariest! Mr. Matsuzaki + Chocolate Festival + Absolutely the Worst! Nendou’s Father + Totally Trusting! Kurumi Saiki + Telepathy Silencer

Kusuo "overhears" his classmates planning to steal a confiscated item back from a terrifying teacher and has to decide whether or not to rat them out.