Saiki Kusuo no Ψ Nan: Season 1, Episode 17
1 - 17: Kaidou's Suspicion + No Intervention Needed?! Nendou vs. Kaidou + The Worst Part-Timer + Fierce Run! Runners Psi!
On his way to school, Shun encounters Aren in the middle of the street. He's stumbled into a revenge plot, but it may be too late to escape.