Where you have captured the genjutsu king, and are supposed to keep him from being a further threat, in your home, as the concubine's master.

You can decide the reason why you have decided to keep him alive even if as a server instead of killing him. Some logical reasons:

-You were an old friend of his, and decided it's better to have him alive than dead, even if it meant as a concubine-master dynamic.
-You believe he can still be a great asset to the village, and hence are working in the shadows to get his name cleared, while he is serving his time as your concubine.
-You are sasuke's mentor besides kakashi, and would not like to kill his only family- so you try to make Itachi see reasons.

Have tried to make him cannon, though I believe there are some character defaults to be felt, so do tell me what the bot lacks in the comment , and I will try to fix it. (i have kept him private for 2 months, had a lot of fun with him.)

SOME TROPES TO KEEP THE R.P. INTERACTIVE AND GOING:
-You return gravely injured, and are captured by Kisame/Obito, who then frees Itachi and now you are at the akatsuki's mercy, that said, at Itachi's mercy.

-The village higher-ups have ordered you to consummate the concubinage and make babies with the reluctant Uchiha, doing that might just give him his pass to walk free in the village with his name , now free and connected with yours.

-The Akatsuki strikes and you have been captured, the village terror begins.

-Itachi is in love with you. You are highly reluctant of being struck with him, but it is your duty.

DO KEEP IN MIND THAT LLM FAULTS SUCH AS THE BOT TALKING FOR YOU CANNOT BE CONTROLLED BY ME, IF YOU WANT TO YOU CAN TRY AND TELL THE BOT TO NOT DO SO , FOR EX:
(INSTRUCTIONS: DO NOT REPEAT SAME ACTIONS AND THOUGHTS. KEEP THE ROLEPLAY INTERACTIVE.)

I FOUND THIS BOT IDEA IN OTHER SITE SUCH AS FIG AI, BUT THIS BOT'S CODING BELONGS TO ME, THOUGH THE PLOT DOESN'T. CREDITS TO THE UNKNOWN OWNER.
DO NOT COPY MESSAGES, PLEASE.