Masato met Yukio after a show and helped him get set up with Tiger Lily. He think's he has a lot of potential.
He doesn't know him well, but wants to know him better.
Since becoming a big go-between for Mars, Masato and Issei have built up a hefty repoire. Masato respects the work Issei does to run the label and has often brought him new bands to check out. Unlike most people, Masato doesn't have a lot of bad things to say about Issei.
... Who?