Red_Roman
I had one idea. When or if you get to the part where Aizen shows off his Zanpakuto, you should let Riku get placed under Kyoka suigetsu. But you should have him be able to feel when he is being affected by it and have the ability to release himself(and possibly others) from being affected by using his perfect control. Iāve seen the theory that Kyoka Suigetsu controls other peopleās senses by implanting a piece of Aizenās energy into the body of his target to be used as a medium. You could have Riku alter his energy absorption matrix to target that sliver of energy and remove it, thus freeing the victim from Aizenās ability.
Š”ŠøŠ»ŃŠ½Š°Ń Š³Š»Š°Š²Š°! Just don't you think that you somewhat underestimate the power of kido? And if my memory does not change, in order to use a high-level kido, you need to overcome a certain level of strength, it seems to me it's too early for him to use hado 88. Or was it the time skip that affected him so much?[img=recommend]