In "Dead Mount Death Play - Episode 20," Izliz and Urdwigia, a dragon, discuss a unique 200-year contract regarding Urdwigia's mortal remains. Urdwigia prefers that his remains be disposed of by an apprentice of his hunter rather than by strangers.

The episode then shifts to a conversation between Sayo and Takumi, where they compare adventurer guilds in novels and shark movies.

A pivotal moment in the episode occurs when Polka Xiaoyu proposes an alliance. This proposal is symbolized by Polka Xiaoyu gifting a new arm. Xiaoyu's curiosity is piqued by a stuffed shark, which turns out to be the real Polka, who now possesses the toy shark.

Civil's arrival at the fortune teller's evokes an eerie feeling among those present. Polka is astonished by the large number of ghosts gathering around Civil during the fortune-telling. This unusual event suggests that Civil's life is marked more by obsession than by malice.

Civil's philosophical stance on justice and revenge becomes clear in his interaction with Polka. Civil believes that people who have been wronged have the right to seek revenge, even against those indirectly related to their oppressors. Polka, fascinated yet slightly unsettled by Civil's views, delves deeper into his soul, attempting to understand the true nature of his convictions.

In the process, it is revealed that Civil is accompanied by a high-ranking earth elemental. Polka recognizes the potential danger posed by the elemental's presence and takes measures to protect his clients and himself. At the end of the episode, Civil decides to leave, promising to return to Polka in the future as a friend.