User blog comment:The Trumpet player of/Something appears to be done./@comment-5717877-20160506165541/@comment-26018514-20160506171007

Personally I'm guessing Yang won't be involved in this series again until after the other three characters are far enough on their respective journeys, So this likely indicates no Yang in episode one, which was to be expected anyways... a person just sitting at home moping doesn't push the plot or sound very interesting, especially in a series made popular by its action.