Showing that Sergei considers the goldfish to be his friend, there does not seem to be a conflict with the relationship between the two. And, yes. It can be called a friendship because any two living organisms can be friends if there wanted to.
You didn't put the question
A character who conquers a scary creature.
it's harmful to not only individuals, but society as well. it is hard to combat because of how society works. If someone very influential says something ra cist, se xist etc on social media, that can teach many people to think saying things like that is okay. alienating someone from society is incredibly harmful, and it can influence others to do the same.
What dose it have to be about ?
