Ehehehe... about that...
Nevermind, time has other brilliant surprises for us.
(muahahaha vague message)

Pushing that aside. Yes, I wanted to give the other characters pets too. It seemed weird that Hidaka was the only one with a pet octopus. Shuta did have a hamster (in an older comic) but it's hardly noticeable, so he no longer has a hamster in future chapters.

Happiness and laughs!
That means I'm doing it right!
Thank you so much!