In a way it's kind of melancholic - The Assistant seems to have never gotten his published series, and this ends on him clinging onto the happy memories of his time with sensei; while actually publishing this comic about those happy days (so you could say he IS actually clinging onto those happy/glory days).
He also seems to have completely lost touch with him after the awkward farewell.
Ah well, real life is mostly melancholic anyway.
This was an enjoyable read, thanks for the translation.