The alias of this book is "Whose Vest Is This Again?"
Lin Chen, the unlucky boy, is surrounded by a group of people who open trumpets. Even if they open trumpet accounts, one by one they keep losing their seats. Yesterday's one lost its horse, today this one lost its horse, and tomorrow... "Master! How come even you..."
Linchen: It's so difficult for me!
Concept: What you see may not be true