To be honest, that image looked very confusing. It was as if the backwards world were the real world. It felt like the order should be backwards and Cail was the outlier.
"That..." Cail followed Zishi's image. He took a step back and mimicked what Zishi was doing. Cail tried walking downstairs backwards. Although his first goal was to return to his room, he was curious, so he tried following Zishi's actions.
Taking a step back, Cail almost tripped, but he was quick to adapt. He started walking backwards. While doing that, he was also looking up... The numbers were increasing.
8... 9... 10...
Then finally, as he was walking backwards, he bumped into someone.
"AHHHHHHHHHH!" It was followed by a piercing scream. Cail almost thought he had squashed the other person to death based on how tragic it sounded.
"Calm down, it's me." He looked back, and sure enough, it was Zishi. He always looked very mentally unstable every time Cail met him.