In this first episode of Dead Mount Death Play (DMDP), we are introduced to a "reverse" isekai scenario where the Corpse God, a powerful necromancer, battles against the Calamity Crusher of the Church (aka the Hero), a man with similar abilities who seeks to destroy beings like the Corpse God. Amidst the fight, the Corpse God realizes he is losing and decides to send his soul through space and time in search of a peaceful life.

His soul ends up in the body of Shinoyama Polka, a Japanese teenager who was recently killed in a targeted attack. The circumstances of Polka's death are mysterious and form the foundation for the series' unfolding plot. This episode showcases the series' commitment to vibrant, bloody action, with intense fight scenes and gruesome imagery.

Polka's killer, Sakimiya Misaki, reappears and engages in a second battle with Polka, who is now inhabited by the Corpse God. The fight culminates in a dramatic finale that seemingly kills Misaki, but given the necromancer's abilities, it's unlikely she'll stay dead for long.

While the overall direction of DMDP has not yet been fully revealed, this first episode sets the baseline for the series and hints at the chaos to come. With the mysteries surrounding Polka's assassination, a group of assassins determined to complete their mission, and the Church's pursuit of the Corpse God, the series promises plenty of conflict as the Corpse God searches for his peaceful existence.

It remains to be seen just how wild and unpredictable DMDP will get on the protagonist's path to peace.