I want to watch but no understand any of it
I watched the first two (of four)... It's nothing super interesting - you can probably get most of it just by following the context. Nothing informative is said, just typical "I'm going to do my best," and Japanese people saying "I want Kagawa to do his best," etc.
He's a good guy, but like Honda he comes across quite cocky for a Japanese person. Though he's pretty funny. When he does the commentary for the table tennis championship in Dortmund that the Japanese girl is participating in, she says "thanks for taking the time even though I'm sure you're so busy," and he says "Uhh nope. My home is five minutes from here."
I don't want to hate Kagawa. But he's going to put on that god damn tablecloth and run around in Old Trafford every other week. Dammit. Everyone I've talked to here thinks it's a pretty big mistake for him, and that Arsenal would have been a much better fit. Why, Alex?? WHY?