Does Anyone Know What 진 Meant 의해 This?

That's what I thought XD I was just wondering if there was an offical answer

i was thinking it was that too. Thats really what it looked like. But Aizen didn't do it the men that work for him did it. And 진 targeted Aizen because he was their leader 또는 boss person.

That's also another interesting theory. For all we know Rangiku could have once been even stronger then she already is