Tiger Whistle of the Old Zhang Family in Willow Alley

Protagonist: Zhang Tianci, Zhang Laoer's second son Background: How old is Xiao Zhang Tianming? He has just returned from other places because he is going to college. What kind of sparks can he create in Liutiao Hutong? This book focuses on self-written and self-pleasant, systematic writing, which does not appear many times. (Note: The main character is a time traveler, because the dump truck lacks performance)