What?
The door opening was a sham?
Black was shocked as he looked towards the direction of the door inside the flat, where the Beast Tamer was said to be.
The Beast Tamer...
Had he started planning that early?
Surprised, he had initially thought that coming up with a solution for the "heart-stealing monster" first meant he was extremely quick to react. He hadn't expected that all of it was a ruse and a trap set up by the heart-stealing monster, and even less so that it was actually a trap laid by the Beast Tamer.
He stood on the third layer, the heart-stealing monster on the fourth, but the Beast Tamer stood on the fifth. When exactly did that guy start to grasp the third layer's solution?