First Horseman of the Apocolypse

After explaining the basis of all planes, Infernum and Caelum, I sunk in my chair. My eyes scanned my wives, who seemed stunned but also quite intrigued at the same time. Kumo seemed to be in deep thought, Homura couldn't hide her excitement, and Aika's smile was wide. 

"You get it now…." 

"Yeah," 

"Ye," 

"I think so," 

"Thank god! How many times did it take me to explain everything!" 

"F-four times," Kumo stutters, avoiding eye contact with me. 

Did I mention I had to explain it four times… FOUR TIMES! 

"I-It's alright, calm down. We get it now," Homura says. 

"Yeah, it was sort of hard to wrap our heads around it. The concept of a different world or "Planes" as you had explained is kind of… yeah, hard to understand," Aika says. 

I guess it was much easier for me to understand since I have a lot of knowledge from my past life, but it didn't seem that hard to comprehend…  Oh, is that Zehar?