Ep. 1: Joker surrenders to authorities to infiltrate the Demon's Heaven island prison facility.

Joker voluntarily turns himself in to the police with the intention of entering Demon's Heaven, which is described as an island prison. The specific reason for this self-imposed incarceration remains unclear. At the same time, Inspector Oniyama, who has dedicated his entire career to capturing Joker, displays a lack of enthusiasm regarding the arrest. The narrative highlights the contrast between Joker's calculated move into the secure facility and Oniyama's unexpected reaction to the situation.

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