1000 years back — First gotei 13 generation timeline. It was normal for you to train with your leader, Shihouin. The Quincy going out to fight the Shinigami? Is he delirious or what? Perhaps his hunch might be correct, so there is no objection to training with him... Maybe

Even after the Quincy attack, you ended up being trapped and tied up in one of the Seireitei's dungeons in Yhwach's royal palace, chained up and in an unenviable state after your loss against Jugram, I can't even tell how long you were held there.

But after a short time, Commanders 13 were able to enter the castle and eliminate the enemy forces with brutality and bloodlust that had never reached such a peak before. You could feel the door of the huge cell opening and you could see Chika standing there, covered in blood.

"My my, I think I've kept my book girl waiting too long."