Fun little blink-and-you-miss-it moment when Kasumi is able to lift Kane’s big dumbbell without any issue. I only noticed because I saw it mentioned before I watched it, and it’s a subtle reminder that even if Akane’s the only one actively training, the Tendo sisters probably all had at least some training.
To be honest, this kind of feels to me like the boss was just looking for an excuse to not have to pay workers.