>>529442485
>>529442536
>>529442135
>>529442850
Raiko predates Yui by 500 years or more. They only met because of the grail war of that timeline. The real tragedy of their relationship is that due to her crazyness Ushi will abuse the trust of her only sisterly companion she ever had unless something else happens to distract her from that

>>529441247
she started to become less insane upon meeting Kintoki and carried on her life (with the occasional suicide attempt). She then artificially made herself a schizo by locking away the crashout part of her personality (Ushi Gozen) that takes her over if her divinity gets too high