Kukaku Shiba's Position as Captain of Squad Ten

I'm very glad a friend brought up this question!

Let me explain! In my outline, Kukaku Shiba would become a captain, but in an accident, she would lose an arm and resign from her position as captain. She would return to the Shiba Family in Rukongai and begin devoting herself to researching fireworks.

The timing would be just before Kisuke Urahara became captain of Squad Twelve.

After the Visoreds defected, Kaien Shiba would become vice-captain, while Isshin Shiba would take over as captain of Squad Ten.

After Kaien Shiba died, Isshin Shiba would go to the World of the Living because of Aizen's scheme. From then on, the Shiba Family would officially decline, with only the brothers Koganehiko and Shiroganehiko remaining as servants.

Kukaku Shiba would be struck hard by her friends' defection and what happened to Kaien Shiba and Isshin Shiba. From then on, she, who had originally loved the Soul Reapers, would no longer have any fondness for them.

She would meet Yoruichi Shihōin again during the Soul Society Infiltration Arc; she would meet Kisuke Urahara, Kensei Muguruma, and the others again during the Karakura Town Offense and Defense Arc; and she would meet Kaien Shiba again during the final arc.

I came up with this plot myself, and I don't know whether everyone will like it!

But don't worry. As I said, no matter what kind of plot it is, I'll write it according to the anime's arrangement.

If I changed it, even if none of you said anything, I'd feel awkward myself. That wouldn't be the story I wanted to write.