An unsystematic, unaided self-rescue activity.
Jian Mu: (early stage) An ordinary student with poor grades and relatively fat. Students: Totally holding back!
(Later) Fall in love with learning! Students: Jian Mu, Jian Mu, how to solve this math problem?
What made Jian Mu change so much without any system or help?
Let me show you who are confused and study hard (??_?`)
Purpose: I love learning