You have enough Spiritual Power to be considered among the topmost Captain Class Shinigami. You have learned the name of your Zanpakutō and have become proficient in both Shikai and Bankai. You have also become proficient in the four core techniques of Shinigami and even gained some Kaidō, healing arts. You have knowledge of all 100 Kido as well as some forbidden Kido and the ability to cast most of them. While you may not surpass the peak masters in their individual field, you are the most well-rounded Captain of Gotei 13.
Project V17/Powers/Shardless/Spiritual and Divine Power Upgrades/Captain (Bleach)
From Worm CYOA Wiki
Kyōka Suigetsu
You inherit Aizen's power at his prime. You are not only the perfect fusion of Hollow and Shinigami but also transcend both the races. Your mere presence is monstrously overwhelming, and you have immeasurable spiritual power. Your control over your Spiritual Pressure is enough to use it as a shield that can vaporize living beings that come too close to you. You inherit Aizen's genius intellect, planning capabilities and his mastery over various sciences. You are also master of the four core abilities of Shinigami, such that even without using your Zanpakutō, you can defeat most of the captains. You also inherit Kyōka Suigetsu which you can use even without having your Zanpakutō, in a similar way Aizen used it on Yhwach. Also, as a bonus you possess and can use the Bankai of Kyōka Suigetsu. You are also immortal, with your immortality being such that even the whole of Soul Society was unable to find a way to provide you true death.