How would I introduce a new cat to my current cats that would be younger than the new cat?

: How would I introduce a new cat to my current cats that would be younger than the new cat?
My question is basically this : I have two young cats. I would like to adopt a cat that is older than my current cats by one year. All questions about cat introductions that I found here have asked how to introduce a new kitten to an older cat that the person already owns, but never adding an older cat to a young cat household. How would that effect the peking order in the house?

Answers and Views:

Answer by Jose george ii Marimat
tell the older cat:

you: (Name of older cat) good day! this is (name of younger cat). He’s younger than you.