So from children's point of view
--> Don't start a sentence with "So". Use "therefore", "hence" or "thus" instead.
Although it is necessary to realize that its main character being the cruel killer has become an attractive hero and so does his pattern of behavior.
--> This is an incomplete sentence. A sentence with "Although" must have this formula: Although + subject 1 + verb 1, subject 2 + verb 2.
In addition to above
aggressive behaviors of the adults
Pay attention to your grammar, it is crucial. Also, when you post your next essays, include the full topic so that other people can help you better according to the topic.
Best