Can you be a Harem story Protagonist without a Harem...?

Rick is a harem story protagonist, although his harem is still empty after three months spent in a novel. Meanwhile his older brother, who has been a protagonist along with him already has his own harem and does things Rick always wanted to do. Will Rick be able to start living as he always wanted? And how will the fact that his brother is a protagonist too, affect his journey? Let’s find it out together. :D

An old story of mine which i dropped :(
Maybe I will someday pick it up again, don't know honestly