Yukio yells at Rin and Rin decides to go for a walk in the woods. But he leaves his sword at home before goes out for the walk. And Rin ends up in a fight with a strong demon that he can't win against. So when Rin's on the ground bleeding, Amaimon comes and saves Rin. Amaimon has feelings for Rin that he's nervous about, and Rin has feelings he's nervous about. How will all this go down and effect them? Read to fined out.