The Atonement Chapter - Part 2 - A Place to Return to Higurashi no naku koro ni : Season 1 Episode 23

Rena disposes of Rina and her lover Teppei, after discovering their plan to con her father. Discovered by her friends, she ends up getting support by them, and they help her hide the bodies, but during the night of the Watanagashi festival, she is interrogated by Oishi and wonders if he suspects of her.