Kamen Rider - Season 12 Episode 20 : The Traitorous Ren

Shinji questions Takeshi on why he enjoys killing people for his own satisfaction without thinking about others. In the real world, Shinji is surprised when Ren suddenly decides to help Takeshi evade being recaptured by the police. Meanwhile, Yui tries to uncover more secrets about her brother's experiments when she finds a film containing an image of the house she obtained from a research file. As Shinji battles against Takeshi once again in Mirror World, Ren suddenly appears and attacks Shinji.