Kubo looked at the girl who had gotten off the boat with him, tucking his plectrum into the belt of his jacket. "Yes?" he asked. He didn't spend much time talking to kids who were about his size. At least, not unless they were an audience. Still, someone was asking for help, perhaps? Maybe his chance to be a hero....?
And since you said Kubo was okay.... (Will try to keep spoilers to a minimum)