Bungo Stray Dogs: My Partnership with the Double Black

Sorry, I don't know why I still want to start a new story when I already have three ongoing serials and two manuscripts running out of chapters. My hands have a mind of their own (T+^+T). Anyway, I just want to write a story where Chuuya actively pursues the heroine. She's a naturally flirtatious, all-around heroine who doesn't realize she's at the top in both brains and brawn, while the male lead, who alternates between domineering and bashful, is a hat rack who's been given what should have been the heroine's role? Theme: Why do people always have so many desires?