eternal amateur

I also got confused at some parts -and the blue arrow thing also caught my attention- especially with the one regarding Kimura's political friend, and I agree, a two hour's movie is too short to pack it with so many things, and it should have been better developed as a drama instead. But what confused me most was the final scene, why did Nino scream? Of frustration? I was hoping he'd fall off in pain after that or something else but not the final credits XD