OVA 12

Zombieman Murder Case 2 (ゾンビマン殺人事件２, Zonbiman Satsujin-Jiken Ni) is the twelfth OVA of the One-Punch Man anime series.

Summary

 * A few S-Class heroes head out to a stormy mountain to defeat a Mysterious Being.

Characters in Order of Appearance

 * Child Emperor
 * Zombieman
 * Superalloy Darkshine
 * Metal Bat
 * Saitama
 * Genos
 * Flashy Flash
 * Speed-o'-Sound Sonic
 * Bearded Worker
 * Crazy Brown Bear (Debut)